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Grant Earl Mouser (September 11, 1868 – May 6, 1949) was a U.S. Representative from Ohio, father of Grant E. Mouser Jr.

Grant Earl Mouser
Grant E. Mouser 1921.jpg
Member of the U.S. House of Representatives
from Ohio's 13th district
In office
March 4, 1905 – March 3, 1909
Preceded byAmos H. Jackson
Succeeded byCarl C. Anderson
Personal details
Born(1868-09-11)September 11, 1868
LaRue, Ohio
DiedMay 6, 1949(1949-05-06) (aged 80)
Marion, Ohio
Resting placeMarion Cemetery
Political partyRepublican
Spouse(s)Della E. Ridgway
Alma materOhio Northern University
Cincinnati Law School

Born in LaRue, Ohio, Mouser attended the LaRue Union Schools and Ohio Northern University, Ada, Ohio. He was graduated from the Cincinnati Law School in 1890. He was admitted to the bar the same year and commenced practice in Marion, Ohio. He served as prosecuting attorney of Marion County 1893–1896. He served as delegate to many State conventions.

Mouser was elected as a Republican to the Fifty-ninth and Sixtieth Congresses (March 4, 1905 – March 3, 1909). He was an unsuccessful candidate for reelection in 1908 to the Sixty-first Congress. He served as delegate to the 1908 Republican National Convention. He resumed the practice of law in Marion. He served as judge of the Court of Common Pleas of Marion County 1916–1925. He resumed the practice of law until 1935 when he retired. He died in Marion, Ohio, May 6, 1949. He was interred in Marion Cemetery.

Harding Patrimony ControversyEdit

Mouser cross examined Nan Britton in Britton's lawsuit (Britton v. Klunk), in which she claimed that the late U.S. President Warren G. Harding was the father of her daughter Elizabeth Ann Blaesing. Britton was unable to provide any concrete evidence, and was shaken by the vicious personal attacks made by Mouser, which cost her the case. Carl Sferrazza Anthony, author of Florence Harding, a biography of Harding's wife, wrote that court transcripts in Toledo, Ohio, show that Mouser referred to Britton as a "degenerate and pervert," then "brought (Florence Kling Harding) in by using Warren's 'love of his good wife' against a 'distorted... deranged... demented... [and] diabolical' Nan who had no respect for the marriage tie...." DNA testing in 2015 confirmed that Blaesing was indeed Harding's daughter.


Mouser was the son of Dr. Justus and Sara (DeLong) Mouser.[1]

Mouser married Della E. Ridgway, of LaRue, November 28, 1892. They had three children, Helena, Grant Earl Jr., and Annabel.[2]

Mouser was a member of the Presbyterian Church, B.P.O.E., K. of P. and I.O.O.F.[1]


  1. ^ a b Neff, William B, ed. (1921). Bench and Bar of Northern Ohio History and Biography. Cleveland: The Historical Publishing Company. p. 575.
  2. ^ Randall, Emilius; Ryan, Daniel Joseph (1915). History of Ohio: the Rise and Progress of an American State. 6. New York: The Century History Company. pp. 666, 667.

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