Elijah J. McCoy (May 2, 1844 [2] – October 10, 1929) was a Canadian-born inventor and engineer of African American descent who was notable for his 57 US patents, most having to do with the lubrication of steam engines. Born free in Canada, he came to the United States as a young child when his family returned in 1847, becoming a U.S. resident and citizen.


BornMay 2, 1844
DiedOctober 10, 1929 (aged 85)
DetroitMichigan, United States
Resting placeDetroit Memorial Park East in Warren, Michigan, U.S.
NationalityCanadian
OccupationEngineer, inventor, initially employed as a railroad fireman and oiler
EmployerMine Coaling
Known forInventions
Spouse(s)Ann Elizabeth Stewart; Mary Eleanor Delane