List of Dennis the Menace (1959 TV series) episodes

Dennis the Menace 1959 title screen

This is a list of episodes from the 1959–1963 United States television series Dennis the Menace. The series is based on the Hank Ketcham comic strip of the same name.

The series ran for four seasons for a total of 146 episodes from October 4, 1959 (1959-10-04) to July 7, 1963 (1963-07-07).

Series overview

Seasons		Episodes	Season Premiere	Season Finale
	1	32	October 4, 1959	June 6, 1960
	2	38	October 2, 1960	June 25, 1961
	3	38	October 1, 1961	July 1, 1962
	4	38	September 30, 1962	July 7, 1963

List of episodes

Season 1

Ep#	Prod#	Title	Airdate
01	01	"Dennis Goes to the Movies"	October 4, 1959 (1959-10-04)
Dennis successfully eludes a babysitter (who he has never met) and sneaks out of the house and goes to a cowboy movie that his parents also go to while Joey is left with the baby sitter, pretending to be Dennis. (This is the pilot, which was made late in 1958. Mrs. Wilson does not appear. Also, due to editing issues, the final two minute scene was shot much later in August 1959 where Dennis obviously had a different hairstyle and sounded more polished than during the rest of the episode)
02	02	"Dennis and the Signpost"	October 11, 1959 (1959-10-11)
Dennis and Tommy replace a fallen street signpost but fail to notice they've put it up with the street names facing in the wrong direction. (Tommy Anderson's first appearance. Also Margaret Wade's first seen appearence though she appeared in 2 episodes made prior to this one but aired after. Also Mrs. Elkins' first appearance. This was the first episode also with Mrs. Wilson to be shown, though she appeared several episodes that were made before but aired after this one. While this was the eighth episode made in the summer of 1959, it was the second episode to air.) Eve McVeagh is also featured as Mrs. Purcell.
03	03	"The Fishing Trip"	October 18, 1959 (1959-10-18)
Mr. Wilson & Dennis' father plan a secret early-morning fishing trip without Dennis, but he suspects something is afoot due to various clues they leave. Their sleep the night before is disrupted by Dennis' restless curiosity. (This was the second episode made but held back in order to air a more recent episode where the cast is more established. Mrs. Wilson's first episode on the show though shown after a later episode in which she appeared.) Ron Howard starred as Dennis' friend, Stewart.
04	04	"Grandpa and Miss Cathcart"	October 25, 1959 (1959-10-25)
Dennis tries to fix up his Grandpa Perkins with Miss Cathcart and other ladies in the neighborhood. (Miss Cathcart's first appearance.)
05	05	"Innocents in Space" "Dennis in Space"	November 1, 1959 (1959-11-01)
Mr. Wilson thinks he has discovered a space satellite when in reality it is Dennis shooting glow-in-the-dark ping-pong balls out of his blaster(gun).
06	06	"Dennis' Garden"	November 8, 1959 (1959-11-08)
Dennis mistakes Mr. Wilson's dahlia bulbs for sweet potatoes, and, after his bedtime, he switches the sweet potatoes for dahlia bulbs.
07	07	"The New Neighbors"	November 15, 1959 (1959-11-15)
Dennis helps Mr. Wilson sell a neighbor's house.
08	08	"Tenting Tonight"	November 22, 1959 (1959-11-22)
Mr. Wilson returns from a camping trip, inspiring Dennis and Tommy to camp out in the backyard. That night Mr. Wilson mistakenly thinks the circus train has crashed and the animals have escaped, but the noises are only Mr. Mitchell playing a sound-effects record for a dinner guest.
09	09	"Dennis Sells Bottles"	November 29, 1959 (1959-11-29)
Dennis thinks his dad is broke, so he sells bottles in an attempt to make some extra money while informing the neighborhood of the Mitchell's dire straights.
10	10	"Mr. Wilson's Award"	December 6, 1959 (1959-12-06)
Mr. Mitchell tells Dennis that he and the family are moving to New York in order to keep Mr. Wilson in town for an award he is to receive. Dennis then informs the neighborhood of their supposed move.
11	11	"The Christmas Story" "Dennis & Christmas"	December 20, 1959 (1959-12-20)
Dennis is going crazy trying to find his gifts including a new sled.
12	12	"Dennis and the Cowboy"	December 27, 1959 (1959-12-27)
Dennis meets Whip Crawford, his cowboy idol, after Mrs. Webster tells Dennis that Whip will be in the community pageant. The role of Crawford is played by Brad Johnson (1924–1981), who had been the deputy Lofty Craig on the syndicated western series Annie Oakley. This was the third episode made and held to show more recently made episodes. Its also the first episode to have Dennis' rival Johnny Brady (who would be played by several actors over the years and shown on an occasional basis) (Mr. and Mrs. Wilson do not appear in this episode.)
13	13	"Dennis Haunts a House" "The Clubhouse"	January 3, 1960 (1960-01-03)
Mr. Wilson becomes suspicious when he hears noises caused by Dennis and his friends who've set up their clubhouse in a crawl space underneath his house.
14	14	"Dennis' Tree House"	January 10, 1960 (1960-01-10)
Mr. Wilson attempts to teach Dennis about bird watching, and Dennis takes care of a sick bird, which proves to be the first of its species ever found in their region, prompting a visit by an excited bird club official.
15	15	"Dennis and the Rare Coin" "The Fountain"	January 17, 1960 (1960-01-17)
Mr. Wilson purchases a rare coin for $250.00, but Mrs. Wilson, without realizing what it is, lets Dennis take it to use in a wishing well, which was the town fountain. Also while at the police station, Dennis mentions on his last visit he was given ice cream. He would be referring to an early episode that had already been made, but was not aired until later the first season as called "Dennis Runs Away".
16	16	"Dennis and the Bike"	January 24, 1960 (1960-01-24)
When his parents won't buy him his own bicycle, Dennis attempts various ways to get one on his own, including getting engaged to Margaret.
17	17	"Dennis and the Open House"	February 7, 1960 (1960-02-07)
Dennis' house is mistaken for a nearby open house that is up for sale, thus attracting a crowd of strangers into what the Mitchells had intended as a small party for friends. (This was the 5th episode made and Margaret Wade's first episode though several later episodes with her appearance airs prior to this one.)
18	18	"Dennis and the Duck"	February 14, 1960 (1960-02-14)
Dennis gets a pet duck that causes havoc in the neighborhood. This was the 6th episode made
19	19	"Dennis and the Swing"	February 21, 1960 (1960-02-21)
Henry tries to take Alice out for their anniversary. Meanwhile, Dennis tries to build a swing in his yard and ends up chasing a cat up a tree in the process.
20	20	"Dennis and the Dog"	February 28, 1960 (1960-02-28)
Dennis cares for a dog named Charlie who wins a prize for his painting!
21	21	"Mr. Wilson's Sister" "Pieces of Eight"	March 6, 1960 (1960-03-06)
Dennis meets Mr. Wilson's sister, Helen. Helen brings George a book he had as a child, Treasure Island. He reads the book to Dennis and Tommy, and they become fascinated with buried treasure. (Joey McDonald's last made episode though he appears in episodes aired after but made before this one.)
22	22	"Dennis and the TV Set"	March 13, 1960 (1960-03-13)
Dennis hears about Mr. Wilson getting a remote control for his television set and is fascinated. He uses his friend's remote to operate Mr. Wilson's television from Dennis' bedroom window, and Mr. Wilson can't understand what's happening.
23	23	"Dennis Creates a Hero"	March 20, 1960 (1960-03-20)
Dennis asks a reporter to write a story about his dad with hopes of getting his picture in the paper.
24	24	"Dennis' Paper Drive"	April 10, 1960 (1960-04-10)
Dennis and Tommy collect newspapers for a paper drive that will reward the boy who collects the most with a silver dollar.
25	25	"Dennis and the Bees"	April 17, 1960 (1960-04-17)
Dennis and Tommy learn that Opie might have to move because his bees can't find honey. The boys move Mr. Wilson's indoor flowers outside to attract the bees, and Dennis has a plan to attract even more.
26	26	"Alice's Birthday"	April 24, 1960 (1960-04-24)
Dennis' father Henry will be out of town for Alice's (Dennis' mother's) birthday, so he gives Dennis some money and tells him to see that his mother has a nice day.
27	27	"Dennis Becomes a Baby Sitter"	May 1, 1960 (1960-05-01)
Dennis winds up babysitting a little boy who is a guest of the Wilsons after his father & Mr. Wilson mistakenly both cancel their respective sitters. This was the seventh episode made and held due to editing issues.
28	28	"Dennis and the Starlings"	May 8, 1960 (1960-05-08)
Mr. Wilson has a bunch of starlings in his tree and wants to get rid of them. Dennis eventually gets rid of the starlings by putting liver in Mr. Wilson's tree which attracts a lot of cats to climb the tree.
29	29	"The Party Line"	May 15, 1960 (1960-05-15)
The Driscolls are new neighbors, but problems arise as their phone is on a shared line with the Mitchells'. Henry gets angry at Mr. Driscoll for monopolizing the line, not realizing that Dennis and his friends were actually the ones using it, and furthermore that Mr. Driscoll is a valued client of Henry's company.
30	30	"Dennis by Proxy"	May 22, 1960 (1960-05-22)
After hearing that the city is tearing down Mr. Dorfman's "Postman's Rest" bench in favor of a parking lot, Dennis and Tommy offer him use of their private bench they plan to build.
31	31	"Dennis Runs Away" "Dennis Visits the Police Station"	May 29, 1960 (1960-05-29)
Dennis has nobody to play with after Joey goes home. Since nobody can drive him, he decides to walk to his grandfather's house in Emerson City but is stopped by the police. At the police station, he refuses to tell his name, is given ice cream, and causes further havoc including putting cement in Mr. Wilson's bowling ball and accidentally handcuffing an officer. (Billy Booth, who played Tommy, first appeared but not yet as Tommy. Ron Howard also appears. This was actually the fourth episode made and it was planned to air earlier in the season. Due to editing problems, this episode would be held and not shown until the end of the season.)
32	32	"Miss Cathcart's Sunsuit"	June 12, 1960 (1960-06-12)
Dennis and Tommy try to sell Valentine's Day cards in July to buy swim fins.

Season 2

Ep#	Prod#	Title	Airdate
1	33	"Out of Retirement"	October 2, 1960 (1960-10-02)
Mr. Wilson gets a visit from his former boss from Pittsburgh who offers Mr. Wilson back his old job, giving him a chance to move far away from Dennis.
2	34	"Dennis and the Wedding"	October 9, 1960 (1960-10-09)
Mr. Wilson's niece is getting married and asks Dennis to be the ring bearer. Elinor Donahue appears as Mr. Wilson's niece.
3	35	"Dennis and the Radio Set"	October 16, 1960 (1960-10-16)
Mr. Wilson gives Dennis an old radio set that he accidentally bid on at an auction, and turns out to have cash hidden inside. Numerous people then appear, each of them claiming to be the rightful owner.
4	36	"Dennis and the Ham-pher"	October 23, 1960 (1960-10-23)
Dennis gets what he thinks is a hamster, but it turns out to be a gopher that escapes from its cage and almost ruins Mr. Wilson's yard.
5	37	"The Stock Certificate"	October 30, 1960 (1960-10-30)
Mr. Wilson has a stock certificate worth $500 and safeguards it inside his phone book, which is then accidentally given away for disposal with thousands of identical books. After the warehouse is carefully searched in vain, it is discovered Dennis had removed the certificate earlier to decorate his treehouse.
6	38	"Man of the House"	November 6, 1960 (1960-11-06)
Dennis tries to take care of his sick mother while his father is out of town.
7	39	"The Rock Collection"	November 13, 1960 (1960-11-13)
Dennis starts a rock collection and ends up finding what he thinks is real gold on Mr. Wilson's lot.
8	40	"Henry and Togetherness"	November 20, 1960 (1960-11-20)
Mr. Wilson tricks Henry out of playing golf so that he'll spend more time with Dennis, and Dennis won't bother Mr. Wilson. Meanwhile, Dennis and Tommy try to deal with a hole Dennis put in the fish tank.
9	41	"Paint-up, Clean-up Week"	November 27, 1960 (1960-11-27)
Dennis wants to help out during Paint-up, Clean-up Week, so Mr. Wilson gives Dennis a bucket of red paint for his wagon. Dennis, however, also decides to paint the street corner by Mr. Wilson's house, and Mr. Wilson gets blamed for it. This episode along with two others, "Mr. Wilson's Uncle" and "Community Picnic" was transcribed by Hank Ketcham into a special edition comic book called "Dennis the Menace Television Special".
10	42	"Dennis Learns to Whistle"	December 4, 1960 (1960-12-04)
Dennis is very upset because he doesn't know how to whistle, so he spends all day trying to learn.
11	43	"The Raffle Ticket"	December 18, 1960 (1960-12-18)
Mr. Wilson is conducting a car raffle for his lodge, and Dennis wants to win the car for his mother. Through a mixup, Mrs. Wilson gives Dennis a winning ticket which had originally been bought by her husband.
12	44	"The Christmas Horse" "Another Christmas Story"	December 25, 1960 (1960-12-25)
Dennis wants a horse for Christmas and gets a record player instead. So, on Christmas Day, he goes around the neighborhood trying to find what he thinks is his horse.
13	45	"Dennis' Allowance"	January 1, 1961 (1961-01-01)
Dennis asks his father for an allowance of $0.25 per week. Henry says he'll give it to him with the condition that he learns the value of money first by earning it himself.
14	46	"Dennis' Penny Collection"	January 8, 1961 (1961-01-08)
Mr. Wilson helps Dennis start a penny collection, hoping it will preoccupy him quietly indoors. However, Dennis pesters the nearby grocer repeatedly for rolls of coins, spills them on the floor, and causes Mr. Wilson to get arrested.
15	47	"Dennis, the Campaign Manager"	January 15, 1961 (1961-01-15)
Dennis convinces Mr. Wilson to run for park commissioner so that he'll open the park all week long instead of just the weekend.
16	48	"Miss Cathcart's Friend"	January 22, 1961 (1961-01-22)
Dennis wants to find Miss Cathcart a best friend, so he gets her a dog from the pound. However, the dog's owner is looking for him and ends up showing up at Miss Cathcart's house before Dennis brings the dog over to her. She mistakenly thinks that the guy is the friend instead of the dog.
17	49	"Pythias Was a Piker"	January 29, 1961 (1961-01-29)
Dennis is to write a composition for school about his best friend, and he chooses Mr. Wilson.
18	50	"Dennis and the Saxophone"	February 5, 1961 (1961-02-05)
Tommy has a saxophone that he doesn't want, so Dennis wants to buy it from Tommy's mother. When Mr. Wilson learns that Dennis is going to ask Henry to buy it for him, Mr. Wilson tries to talk Henry out of it.
19	51	"Wilson Sleeps Over"	February 12, 1961 (1961-02-12)
Dennis accidentally knocks over a bottle which fumigates the Wilsons' house, so the Wilsons stay at the Mitchells' for the night. Mr. Wilson walks in his sleep.
20	52	"Dennis' Birthday"	February 19, 1961 (1961-02-19)
Mr. Wilson puts on a magic show for Dennis' birthday and asks Spring Byington (starring on December Bride) to be his assistant.
21	53	"Dennis Goes to Camp"	February 26, 1961 (1961-02-26)
Mr. Wilson takes Dennis and his friends to a camp for a day, and they end up stranded there for a week after a storm takes out a bridge.
22	54	"Dennis' Tool Chest"	March 5, 1961 (1961-03-05)
Miss Cathcart's cat is accidentally locked in the trunk of Mr. Wilson's car.
23	55	"The Going Away Gift"	March 12, 1961 (1961-03-12)
Dennis gets his mother a going-away present and hides it on Mr. Wilson's closet shelf. Mrs. Wilson finds it and thinks it is a gift for her from Mr. Wilson.
24	56	"Dennis and the Fishing Rod"	March 19, 1961 (1961-03-19)
Dennis wants to buy a fishing rod for his father and tries to purchase it with a $50.00 Confederate bill.
25	57	"Dennis and the Good Example"	March 26, 1961 (1961-03-26)
Dennis decides he wants a bird, but he knows that once his dad sees his report card, he won't get it. So his dad does agree to reward Dennis if he brings home a better report card next term.
26	58	"Dennis' Obligation"	April 2, 1961 (1961-04-02)
Dennis brings home chicken eggs to take care of for a school project but ends up taking them over to the Wilsons' house because of a power outage at the Mitchells'.
27	59	"The Dog Trainer"	April 9, 1961 (1961-04-09)
Dennis trains Mr. Wilson's dog, Fremont, but the training backfires when Fremont will only listen to Dennis and ignores Mr. Wilson.
28	60	"Woodman, Spare That Tree"	April 16, 1961 (1961-04-16)
Mr. Wilson drops a hundred-dollar bill, and a crow picks it up and flies away with it. He later finds it in an old tree in a park which the park commissioner is going to cut down.
29	61	"The Boy Wonder"	April 23, 1961 (1961-04-23)
Mr. Wilson builds a barbecue in his backyard with help from Dennis' friend, Fred Baines.
30	62	"The Soapbox Derby"	April 30, 1961 (1961-04-30)
Dennis enters a soapbox derby, and Mr. Wilson accidentally ends up being the one driving Dennis' car in the race.
31	63	"Dennis and the Camera"	May 7, 1961 (1961-05-07)
Mr. Wilson is supposed to take a picture of a plant that blooms at night but ends up dozing off when the time comes. Luckily, Dennis takes the picture of the flower for him.
32	64	"Dennis and the Miracle Plant Food"	May 14, 1961 (1961-05-14)
Dennis accidentally steps on one of Mr. Wilson's plants. He buys Mr. Wilson a replacement and plants it in his flower bed without Mr. Wilson knowing. When Mr. Wilson sees the plant, which is much larger than the one that was there originally, he is convinced that the new miracle plant food he invented is the cause of the growth.
33	65	"Dennis' Newspaper"	May 21, 1961 (1961-05-21)
Dennis overhears Mr. Wilson saying that he wishes he had his raccoon coat back. Dennis gives the story to the newspaper and, as a result, all day, people bring Mr. Wilson raccoon coats.
34	66	"Mr. Wilson's Paradise"	May 28, 1961 (1961-05-28)
Mr. Wilson wants to go to the Island of Happiness in Mexico but changes his mind when he hears that his niece is going to have a baby.
35	67	"The Fortune Cookie"	June 4, 1961 (1961-06-04)
Mr. Wilson gets a fortune cookie that reads "beware of tomorrow" and is convinced that the fortune will come true.
36	68	"The Pioneers"	June 11, 1961 (1961-06-11)
Dennis, his father, and Mr. Wilson camp out to prove that they can live off of the land like the western pioneers. Judson Pratt appears as Mr. Kawalski.
37	69	"Father's Day for Mr. Wilson"	June 18, 1961 (1961-06-18)
Dennis decides to give Mr. Wilson his own Father's Day which, in the end, turns out very well after Dennis gets Mr. Wilson out of a lawsuit concerning his dog, Fremont.
38	70	"Dennis and the Picnic"	June 25, 1961 (1961-06-25)
Dennis' father finds a bag of money in the gutter. He calls Mr. Wilson to witness what he's found, and they take it to the police station. They later learn that the money is counterfeit.

Season 3

Ep#	Prod#	Title	Airdate
1	71	"Trouble from Mars"	October 1, 1961 (1961-10-01)
Mr. Wilson accidentally gets Dennis' space helmet stuck on his head.
2	72	"Best Neighbor"	October 8, 1961 (1961-10-08)
Dennis and Mr. Wilson camp out on a mountain so that Dennis can join the Junior Pathfinders club.
3	73	"Keep Off the Grass"	October 15, 1961 (1961-10-15)
Henry gets a ticket for walking on the grass in the park. When Mr. Wilson hears about it, he thinks it isn't fair, so he convinces Henry to go to court and contest it.
4	74	"Mr. Wilson's Safe"	October 22, 1961 (1961-10-22)
Dennis uses numbers for a football play that are the combination to Mr. Wilson's safe, so Mr. Wilson and Henry get Dennis so confused that he forgets the combination. Unfortunately, Mr. Wilson forgets it, as well, and he has something very important locked inside.
5	75	"Haunted House"	October 29, 1961 (1961-10-29)
George and Henry purchase a house as an income property and later find out that it is known to be haunted. Unable to get their money back, they sleep inside to prove that it isn't haunted. Noises they repeatedly hear are finally found to be from a squatter in the basement trying to scare them away.
6	76	"The School Play"	November 5, 1961 (1961-11-05)
Mr. Wilson ends up being in a play at Dennis' school after he and Tommy, who is in the play, get handcuffed together before the play starts.
7	77	"The Fifty-Thousandth Customer"	November 12, 1961 (1961-11-12)
Mr. Finch is having a contest in which his store's fifty-thousandth customer of the year will win five minutes of free shopping. Mr. Wilson is determined to be the winner.
8	78	"Dennis and the Pee Wee League"	November 19, 1961 (1961-11-19)
Mr. Wilson coaches Dennis' Pee Wee League baseball team because Henry, the team's original coach, becomes ill.
9	79	"Mr. Wilson's Inheritance"	November 26, 1961 (1961-11-26)
Mr. Wilson receives an inheritance from his aunt and thinks about starting a charitable foundation. Through a misunderstanding, a contractor thinks he has ordered a new foundation dug under his house.
10	80	"Dennis Is a Genius"	December 3, 1961 (1961-12-03)
A mix up in grading the school IQ test mistakenly labels Dennis a genius.
11	81	"The Lucky Piece"	December 17, 1961 (1961-12-17)
Mr. Wilson tricks Dennis into taking a silver coin that reads "good luck" and has a horseshoe on it instead of a half-dollar that he owes Dennis for mowing his lawn.
12	82	"The Fifteen-Foot Christmas Tree"	December 24, 1961 (1961-12-24)
Dennis, Henry, and Mr. Wilson go out in the woods and cut down a big Christmas tree that almost ends up getting destroyed before they get it home.
13	83	"Dennis' Bank Account"	December 31, 1961 (1961-12-31)
Dennis wants to open an account at the bank where Mr. Wilson is temporarily working in the new-accounts department.
14	84	"Through Thick and Thin"	January 7, 1962 (1962-01-07)
Dennis' cub scout troupe is putting on a circus, and Dennis convinces Mr. Wilson to be the lion. He tells Mr. Wilson that nobody has to know he's the one inside the costume.
15	85	"Calling All Bird Lovers"	January 14, 1962 (1962-01-14)
Mr. Wilson holds a bird lovers session at his home where a woman does bird calls that sound like real birds.
16	86	"Silence Is Golden"	January 21, 1962 (1962-01-21)
Mr. Wilson agrees to give Dennis his magnifying glass as long as he doesn't say a word to him or around him for the rest of the day. Henry and Alice had, also, told Dennis that he talks too much, so he doesn't speak around them, either.
17	87	"Dennis Has a Fling"	January 28, 1962 (1962-01-28)
Dennis is put on the spot when he asks both Mr. Wilson and Mr. MacTavish (an authentic Scot) to represent Scotland for his school project. Special Guest Star: Susan Jones, 1961 Miss Scotland
18	88	"Frog Jumping Contest"	February 4, 1962 (1962-02-04)
Dennis enters his frog in a frog-jumping contest with Mr. Wilson as his partner. Mr. Wilson bets Sgt. Mooney that Dennis' frog will beat Mooney's.
19	89	"Where There's a Will"	February 11, 1962 (1962-02-11)
Mr. Wilson decides to leave Dennis a gold watch in his will. Soon after, Mr. Wilson begins to feel old and is convinced that he has a short time to live. (This episode aired six days before the actor playing Mr. Wilson, Joseph Kearns, actually passed away. He does air in the next few episodes because they were made prior to his death.)
20	90	"Mr. Wilson's Uncle"	February 18, 1962 (1962-02-18)
George's uncle, Ned, (Edward Everett Horton comes to visit and convinces George that he isn't in shape. Ned starts a physical fitness program and forces George and Henry to participate.
21	91	"A Quiet Evening"	February 25, 1962 (1962-02-25)
Mr. Wilson plans to have a quiet evening at home, but his plans change when Henry needs a sitter for Dennis. Mr. Wilson is talked into being a sitter for Dennis, Margaret, and Seymour. John Astin appears as the policeman.
22	92	"The Private Eye"	March 4, 1962 (1962-03-04)
Mr. Wilson's wallet is taken by a pick-pocket, so Dennis and Tommy try to help the police find the crook.
23	93	"Mr. Wilson's Housekeeper"	March 11, 1962 (1962-03-11)
Mr. Wilson hires a housekeeper for Mrs. Wilson but soon regrets it when the housekeeper tries to tell Mr. Wilson what he can and cannot do in his own home. Jean Stapleton appears as the housekeeper.
24	94	"A Dog's Life"	March 18, 1962 (1962-03-18)
A big shaggy dog follows Mr. Wilson home from the market.
25	95	"Dennis' Documentary Film"	March 25, 1962 (1962-03-25)
Dennis enlists the help of Mr. Wilson in creating a documentary film of the town for Dennis' school project.
26	96	"Horseless Carriage Club"	April 1, 1962 (1962-04-01)
George buys a 1912 Winton to enter into the Horseless Carriage Road Race with the intent of winning the race and becoming president of he and Henry's chapter of the Horseless Carriage Club.
27	97	"Junior Pathfinders Ride Again"	April 8, 1962 (1962-04-08)
An Indian fire-starting demonstration is to take place for Dennis' Junior Pathfinders club, but the person who is to do perform the demonstration hurts his back. Mr. Wilson, trying to get into the Pioneer Club, is volunteered to be the replacement Indian chief and has to start a fire by rubbing together two sticks.
28	98	"The Treasure Chest"	April 15, 1962 (1962-04-15)
Mr. Wilson buys a treasure chest at an auction thinking that it has a pirate's treasure in it. When he gets it open and discovers nothing valuable, he tells Dennis that he can do whatever he wants with it.
29	99	"Wilson Goes to the Dentist"	April 29, 1962 (1962-04-29)
Dennis makes an appointment with a new dentist who gives out sports equipment to new patients, but then instead has Mr. Wilson go in his place, even though Wilson has long been afraid of dentists.
30	100	"The Man Next Door"	May 6, 1962 (1962-05-06)
Mr. Wilson thinks his next-door neighbor is the stocking bandit and tries to prove it. (This episode was filmed the day Joseph Kearns, who played Mr. Wilson, actually died. It's the last episode with the original Mr. Wilson.)
31	101	"Dennis and the Dodger"	May 13, 1962 (1962-05-13)
Mr. Quigley, though lacking experience, is named coach of the town's pee-wee baseball team, hoping it will help advertise his store. The mayor agrees to give the team new uniforms if Quigley can get Sandy Koufax and the Dodgers to play an exhibition game in town (Mrs. Wilson appears in this episode while Mr. Wilson does not due to the fact Joseph Kearns had died.) Koufax appears, and his charisma and popularity upstage Quigley.
32	102	"Dennis' Lovesick Friend"	May 20, 1962 (1962-05-20)
Dennis helps Mr. Wilson's Uncle Ned plant flower bulbs in his yard in order to get out of playing house with Margaret. (Mrs. Wilson appears in this episode while Mr. Wilson does not due to the death of Joseph Kearns.) The bulbs are unfortunately planted upside-down.
33	103	"John Wilson's Cushion"	May 27, 1962 (1962-05-27)
George Wilson's brother, John, comes to stay with Martha while George is out of town. John is a writer, but has trouble working without his old seat cushion. (This marks Gale Gordon's debut as Mr. John Wilson, George's brother. In real life, the actor playing George had died. In this episode, however, it's stated that Mr. George Wilson is away on business and that John is a guest of the Wilsons.) A new title sequence begins, including Gale Gordon's name.
34	104	"John Wilson Wins a Chicken"	June 3, 1962 (1962-06-03)
After selling a rare 1919 dime for $150, Mr. John Wilson buys ten raffle tickets from Dennis and ends up winning a chicken. When he wants to cook the chicken for dinner, Dennis and his friends try to talk him out of it.
35	105	"The Bully"	June 10, 1962 (1962-06-10)
After being picked on by the school bully, Alice makes Dennis promise not to fight. As a result, the bully gives Dennis a black eye. Henry gives Dennis the go-ahead to fight back next time, so Mr. John Wilson teaches Dennis how to fight.
36	106	"The Club Initiation"	June 17, 1962 (1962-06-17)
Dennis wants to join an older boys' club, but in order to do so, he has to go through an initiation.
37	107	"The Community Picnic"	June 24, 1962 (1962-06-24)
Mr. Brady and Tiny, an employee at his store, challenge Henry and Mr. John Wilson to compete against them in the sporting events at an upcoming community picnic.
38	108	"Dennis and the Witch Doctor"	July 1, 1962 (1962-07-01)
Mr. Wilson is writing a magazine article about voodoo. Dennis gets the wrong idea and tells the whole neighborhood that Mr. John Wilson is a witch doctor. (The last episode with Mrs. Martha Wilson, who moves away with the original Mr. Wilson, George. John buys the house.)

Season 4

Ep#	Prod#	Title	Airdate
1	109	"The Chinese Girl"	September 30, 1962 (1962-09-30)
Dennis becomes fast friends with a girl from Hong Kong who is staying with the Wilsons. (This marks the debut of Eloise Wilson, John Wilson's wife. They now live in the house formerly occupied by George and Martha and state that George and Martha Wilson have moved east and sold them the house.)
2	110	"You Go Your Way"	October 7, 1962 (1962-10-07)
Dennis hears the Wilsons argue over a minor issue, and mentions it to several neighbors, who then think that the Wilsons have split up. Two local spinsters get a makeover and make a play for Mr. Wilson, each hoping to be his girlfriend.(This marks the last time the original Wilson's George & Martha were Mentioned.)
3	111	"Dennis and the Circular Circumstances"	October 14, 1962 (1962-10-14)
Mrs. Elkins turns Dennis down for a job delivering circulars for her campaign, but Mr. Wilson agrees to help Dennis get it.
4	112	"The Little Judge"	October 21, 1962 (1962-10-21)
Sgt. Mooney gives Mr. Wilson a summons after a complaint from Mrs. Elkins for an alleged violation of a town ordinance. So Mr. Wilson requests a trial, which occurs on "Children's Day in Court" – the day he designated for the children of the town to run the court and Dennis is the judge.
5	113	"Poor Mr. Wilson"	October 28, 1962 (1962-10-28)
Mr. Wilson's money falls through a hole in his pocket while he was at Quigley's market and thus, he cannot pay Dennis for washing his car. Dennis misinterprets "the market" as referring to the stock market rather than the food market and as a result, mistakenly thinks that Mr. Wilson is broke.
6	114	"Dennis in Gypsyland"	November 4, 1962 (1962-11-04)
Mr. Wilson's article about gypsies is returned with the request that he, first, get to know them and research them further before submitting another. Therefore, he dresses in full gypsy attire and travels on a donkey to a local gypsy camp in order to best observe them. He performs a gesture that, unbeknownst to him, is a wedding proposal to a woman at the camp.
7	115	"The New Principal"	November 11, 1962 (1962-11-11)
Dennis and his school's new principal get off on the wrong foot after the principal takes a remark about his height the wrong way. He threatens to kick Dennis off the baseball team if he observes any further impudence. This is the last episode that mentions that John Wilson was not the original Mr. Wilson and had recently bought the house from George. From here on, John and his wife continue as if they have always been the sole Wilsons.
8	116	"San Diego Safari"	November 18, 1962 (1962-11-18)
Mr. Wilson is selected to pick up a chimpanzee from the San Diego Zoo, so both the Wilsons and the Mitchells take a trip there. Confusion results when they try to hide and calm down the agitated chimp, at night, from their motel manager who is allergic to animals.
9	117	"Dennis at Boot Camp"	November 25, 1962 (1962-11-25)
Mr. Wilson's nephew visits him in San Diego and gives Mr. Wilson and Dennis a ride in his Navy truck – something against Navy regulations. Mr. Wilson and Dennis hide in the back of the truck when Mr. Wilson's nephew has to pick up one of his officers. Mr. Wilson and Dennis are unable to get out of the truck and are brought back to the naval base.
10	118	"Henry's New Job"	December 2, 1962 (1962-12-02)
Henry is thinking of getting a new job that would relocate him and his family to a country called Calpuna near the Ganges River for three years. Dennis does what he can to prevent this from happening including running away from home.
11	119	"Wilson's Second Childhood"	December 16, 1962 (1962-12-16)
Mr. Wilson hangs out and plays with Dennis and his friends for the day to gather information for a magazine article about the changing behaviors of children. One of Dennis's friends is played by a young Kurt Russell.
12	120	"Jane Butterfield Says"	December 23, 1962 (1962-12-23)
Mr. Wilson takes over an advice-to-the-lovelorn newspaper column for a few weeks. He thinks he will have every single woman in town happily married by the time he finishes.
13	121	"Dennis and the Hermit"	December 30, 1962 (1962-12-30)
Dennis visits a hermit who lives in a shack out in the woods. Mr. Wilson thinks that the hermit fought in the Civil War, so he tries to get his life story.
14	122	"My Uncle Ned"	January 6, 1963 (1963-01-06)
Mr. Wilson has written a book about his Uncle Ned's life. Ned, however, does not want the book to be published because certain parts of it, he claims, are not true.
15	123	"Junior Astronaut"	January 13, 1963 (1963-01-13)
Mr. Wilson is named chairman of a saving-stamps campaign for the Junior Astronauts. As chairman, he arranges a contest at Dennis' school in which the student who collects the most stamps wins a trip to Cape Canaveral to meet an astronaut. Guest appearance by Project Mercury spokesman "Shorty" Powers as himself.
16	124	"Wilson's Little White Lie"	January 20, 1963 (1963-01-20)
Mr. Wilson tells Dennis he isn't feeling well just to get Dennis to leave him alone. Dennis spreads the word leading everyone to believe that Mr. Wilson is very sick.
17	125	"Dennis, the Rain Maker"	January 27, 1963 (1963-01-27)
Henry desperately wants to get out of playing golf with his boss and says he'd give $10.00 for a rain storm. Mr. Wilson gives Dennis a book called Secrets of the Indian Rain Dance, and he and his friends decide to give it a try.
18	126	"The Creature with the Big Feet"	February 3, 1963 (1963-02-03)
Mr. Wilson sees large footprints in his yard caused by Dennis' new novelty shoes and thinks they may be from a monster that has been reported in the newspaper. Mr. Wilson vows to capture the supposed monster.
19	127	"Dennis, the Confused Cupid"	February 10, 1963 (1963-02-10)
Dennis is interested in learning about love. His parents and Mr. and Mrs. Wilson both tell him how wonderful love is, but he just doesn't understand.
20	128	"Dennis Goes to Washington"	February 17, 1963 (1963-02-17)
Dennis is appointed by the mayor to go to Washington to ask their senator to support the creation of a national forest at nearby Hickory Mountain. Mr. Wilson goes along to cover the story and thinks his contacts there will be the thing that allows the idea of a forest to be realized.
21	129	"The Big Basketball Game"	February 24, 1963 (1963-02-24)
Dennis' basketball team's star player, Stretch, quits the team after Johnny Brady and some of the other players constantly make fun of him and make him feel unwanted. Dennis makes a plea to Mr. Quigley to talk to Stretch in an attempt to persuade him to rejoin the team.
22	130	"Wilson's Allergy"	March 3, 1963 (1963-03-03)
Mr. Wilson is convinced that he is allergic to Dennis because he sneezes every time he is around. Henry and Alice realize that Dennis has changed his bath soap recently, so he takes a bath with his old soap to see if that is the problem. Mr. Wilson still sneezes, so he tells Dennis that they'll have to stay away from each other from now on.
23	131	"Baby Booties"	March 10, 1963 (1963-03-10)
Mrs. Wilson knits several baby booties to use as golf club covers for a new set of clubs she bought for Mr. Wilson's birthday. Dennis sees the booties, and Tommy says it means that Mr. and Mrs. Wilson are going to have a baby. Dennis quickly spreads the word around the neighborhood. Word gets back to Mr. Wilson, and he thinks it may be true.
24	132	"My Four Boys"	March 17, 1963 (1963-03-17)
Mr. Wilson enters an essay contest that requires the entrants to be parents. When he wins the contest, he tries to pass off Dennis and his friends as his own children.
25	133	"Dennis and the Homing Pigeons"	March 24, 1963 (1963-03-24)
Dennis and Tommy play at sending messages to each other using homing pigeons. Mrs. Wilson gives Dennis a scratch pad to use for the notes without knowing that Mr. Wilson had an important stock tip written on the pad. Dennis attaches the page with the tip to a pigeon and releases it. Mr. Wilson and Henry, who also wishes to invest in the stock, try to recapture the pigeon by spending a night in a haunted house.
26	134	"A Tax on Cats"	March 31, 1963 (1963-03-31)
Mr. Wilson becomes a cat catcher for the police department to help enforce a cat license law.
27	135	"The Uninvited Guest"	April 7, 1963 (1963-04-07)
With Henry away in New York on business and Alice having to spend the night with Henry's mother, Dennis stays with the Wilsons for a night.
28	136	"Dennis Plays Robin Hood"	April 14, 1963 (1963-04-14)
Dennis and his friends decide to play Robin Hood. Dennis takes Mr. Wilson's lawn edger to use on his own lawn. Mr. Wilson sees Mrs. Elkins using an edger she had recently purchased. Thinking it's his and that she had stolen it from him, he takes it back when she leaves to answer the phone.
29	137	"The Three F's"	April 12, 1963 (1963-04-12)
Property taxes have risen, and Mr. Wilson thinks the reason is that the school is wasting money on nonessential programs and luxuries. So the principal invites Mr. Wilson to spend the day as a regular student.
30	138	"Never Say Dye"	April 28, 1963 (1963-04-28)
A famous actress commissions Mr. Wilson to write her life story thinking he is a "young, vigorous author with a youthful point-of-view." He buys some hair dye in an attempt to look younger and asks Dennis to bring it to his house for him. The bottle falls out of the box and breaks on the sidewalk, so he and Tommy replace it with a bottle of Tommy's mother's dye thinking it's the same thing. An unsuspecting Mr. Wilson proceeds to use the dye on his entire head.
31	139	"The Lost Dog"	May 5, 1963 (1963-05-05)
Dennis finds a stray dog and, since the pound is closed until the next morning, Henry allows the dog to stay in their house for the night. The dog causes nothing but trouble including barking in the basement, jumping on Henry's bed, and chasing Mr. Wilson up a tree.
32	140	"Tuxedo Trouble"	May 12, 1963 (1963-05-12)
Dennis and his friends start a laundry service using Mrs. Elkins' old washing machine. Dennis offers to take Mr. Wilson's tuxedo to the cleaners but decides to try to remove a stain himself. While Dennis is away, Seymour throws the tuxedo in the washing machine with other children's dirty laundry. To cover himself, Dennis decides to give Mr. Wilson Henry's tuxedo to use.
33	141	"Hawaiian Love Song"	May 19, 1963 (1963-05-19)
Mrs. Wilson is angry with Mr. Wilson because she thinks he's not taking her to Hawaii for their anniversary even though he promised to. He really is taking her, though, and has the plane tickets mailed to the Mitchells' so that Mrs. Wilson won't discover them. When Alice gets the envelope, she thinks that Henry has used the money from his bonus to buy them tickets to Hawaii.
34	142	"The Lucky Rabbit's Foot"	May 26, 1963 (1963-05-26)
Dennis has what he thinks is a lucky rabbit's foot. With recent bad luck Mr. Wilson has been having, Dennis offers to let him borrow the foot. Mr. Wilson, however, doesn't believe in such superstition and doesn't take the foot. Immediately thereafter, his bad luck continues when something jams his lawnmower, and he runs over his garden hose with the mower.
35	143	"Listen to the Mockingbird"	June 2, 1963 (1963-06-02)
Mr. Wilson and Mrs. Elkins are each running for president of the Birdwatchers Society. The first mockingbird of spring has made its nest in Mr. Wilson's backyard, and its chirping keeps him up at night.
36	144	"First Editions"	June 9, 1963 (1963-06-09)
Henry tells Dennis to get rid of his massive comic book collection, so he decides to sell them. Meanwhile, Mr. Wilson wants to buy a new camera, and tries to sell his first-edition books to raise the needed funds. Peter Ustinov plays a rare book buyer.
37	145	"A Man Among Men"	June 16, 1963 (1963-06-16)
While Henry is out of town, Dennis takes his place and tries to do everything his father would do. Meanwhile, Mr. Wilson has a book he has written published and plans to give the profits to charity. He tries to get a window display for his book at the local book store, but the owner refuses, thinking that Mr. Wilson is a greedy man.
38	146	"Aunt Emma Visits the Wilsons"	July 7, 1963 (1963-07-07)
When Mr. Wilson's Aunt Emma pays him a visit, she takes an instant liking to Dennis. This causes Mr. Wilson to fear that she will make Dennis her heir instead of him.