Engineer (foaled c. 1756) was a brown English Thoroughbred stallion bred by William Fenton of Glass House, near Leeds, Yorkshire. His outstanding son was Mambrino, although he sired some good race horses, such as King's Plate winner Fireworker, and Black Tom, a number of his daughters gained distinction as broodmares.
|Rutland Black Mare|
|Curwen's Bay Barb|
|Sister To Hobby|
Young Greyhound Mare
|Crofts Pet Mare||Wastell Turk|
|Curwen Barb Mare||Curwen's Bay Barb