Elijah McCoy

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Elijah McCoy
Elijah McCoy.jpg
BornMay 2, 1844
DiedOctober 10, 1929(1929-10-10) (aged 85)
Detroit, Michigan, United States
Resting placeDetroit Memorial Park East in Warren, Michigan, U.S.
Nationality Canadian
OccupationEngineer, inventor, initially employed as a railroad fireman and oiler
EmployerMine Coaling
Known forInventions
Spouse(s)Ann Elizabeth Stewart; Mary Eleanor Delaney
First page of US patent 129,843 for Improvement in Lubricators for Steam-Engines US patent 129,843.png
First page of US patent 129,843 for Improvement in Lubricators for Steam-Engines

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.


Early life

Elijah McCoy was born free in 1844 in Canada to George and Mildred McCoy. At the time, they were fugitive slaves who had escaped from Kentucky to Canada via helpers through the Underground Railroad. [3] George and Mildred arrived in Colchester Township, Essex, Upper Canada in 1837 via Detroit. Elijah McCoy had 11 siblings. Ten of the children were born in Canada from Alfred (1836) to William (1859). Based on 1860 Tax Assessment Rolls, land deeds of sale, and the 1870 USA Census it can be determined George McCoy's family moved to Ypsilanti, Michigan in 1859–60.

Elijah McCoy was educated in black schools of Colchester Township due to the 1850 Common Schools act which segregated the Upper Canadian schools in Scotland. At age 15, in 1859, Elijah McCoy was sent to Scotland. After some years, he was certified in Scotland as a mechanical engineer. By the time he returned, the George McCoy family had established themselves on the farm of John and Maryann Starkweather in Ypsilanti. George used his skills as a tobacconist in order to establish a tobacco and cigar business.


When Elijah McCoy arrived in Michigan, he could find work only as a fireman and oiler at the Michigan Central Railroad. In a home-based machine shop in Ypsilanti, Michigan, McCoy also did more highly skilled work, such as developing improvements and inventions. He invented an automatic lubricator for oiling the steam engines of locomotives and ships, patenting it in 1872 as "Improvement in Lubricators for Steam-Engines" ( U.S. Patent 129,843 ).

Similar automatic oilers had been patented previously; one is the displacement lubricator, which had already attained widespread use and whose technological descendants continued to be widely used into the 20th century. Lubricators were a boon for railroads, as they enabled trains to run faster and more profitably with less need to stop for lubrication and maintenance. [4] McCoy continued to refine his devices and design new ones; most of his patents dealt with lubricating systems. After the turn of the century, he attracted notice among his black contemporaries. Booker T. Washington in Story of the Negro (1909) recognized him as having produced more patents than any other black inventor up to that time. This creativity gave McCoy an honored status in the black community that has persisted to this day. He continued to invent until late in life, obtaining as many as 57 patents; most related to lubrication but others also included a folding ironing board and a lawn sprinkler. Lacking the capital with which to manufacture his lubricators in large numbers, he usually assigned his patent rights to his employers or sold them to investors. Lubricators with the McCoy name were not manufactured until 1920, near the end of his career, when he formed the Elijah McCoy Manufacturing Company to produce them. [4]

Historians have not agreed on the importance of McCoy's contribution to the field of lubrication. He is credited in some biographical sketches with revolutionizing the railroad or machine industries with his devices. Early twentieth-century lubrication literature barely mentions him; for example, his name is absent from E. L. Ahrons' Lubrication of Locomotives (1922), which does identify several other early pioneers and companies of the field.

Regarding the phrase "The real McCoy"

This popular expression, typically meaning the real thing, has been incorrectly attributed to Elijah McCoy's oil-drip cup invention. One theory is that railroad engineers looking to avoid inferior copies would request it by name, [5] and inquire if a locomotive was fitted with "the real McCoy system". [6] [7] This theory is mentioned in Elijah McCoy's biography at the National Inventors Hall of Fame. [8] It can be traced to the December 1966 issue of Ebony in an advertisement for Old Taylor bourbon whiskey: "But the most famous legacy McCoy left his country was his name." [9] A 1985 pamphlet printed by the Empak Publishing Company also notes the phrase's origin but does not elaborate. [10]

Other possibilities for its origin have been proposed [4] and while it has undoubtedly been applied as an epithet to many other McCoys, its association with Elijah has become iconic [11]

The expression, "The real McCoy", was first published in Canada in 1881, but the expression, "The Real McKay", can be traced to Scottish advertising in 1856. [12]


He married for the second time in 1873 to Mary Eleanor Delaney. The couple moved to Detroit when McCoy found work there. Mary McCoy (died 1922) helped found the Phillis Wheatley Home for Aged Colored Men in 1898. [13] Elijah McCoy died in the Eloise Infirmary in Nankin Township, now Westland, Michigan, on October 10, 1929, at the age of 85, after suffering injuries from a car accident seven years earlier in which his wife Mary died. [14] He is buried in Detroit Memorial Park East in Warren, Michigan. [15]


McCoy historical marker, Ypsilanti Elijah McCoy Commemorative Historical Marker Ypsilanti Michigan.jpg
McCoy historical marker, Ypsilanti

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  1. "And the people of Detroit have time and again been they very sort of pioneers who shape our country with innovative audacity. Near the end of the 19th century, an inventor named Elijah McCoy came to this city, drawn by its potential, and history was made-with more than 57 U.S. patents by the end of his remarkable life, Elijah's vision transformed the railroad system, and with it our trade economy. That's the story of American possibility, realized through the power of the American patent-and I can think of no more fitting name to adorn the walls of this new office than the "Real McCoy" himself." [24]


  1. "Elijah McCoy Picture". Argot Language Center. Archived from the original on 2013-05-19.
  2. Sources give his birthdate as May 2, 1843; May 2, 1844; or less commonly March 27, 1843.
  3. Marshall, Albertpublisher=Marland Pub (1989). The "real McCoy" of Ypsilanti. Ypsilanti, MI.
  4. 1 2 3 "The not-so-real McCoy". Brinkster. Archived from the original on May 17, 2011. Retrieved February 3, 2011. disputes "Real McCoy" story
  5. "Elijah McCoy, Inventor of the Week". Lemelson-MIT Program. May 1996. Archived from the original on 2003-08-23. Retrieved August 18, 2011.
  6. Quinion, Michael. "The Real McCoy". World Wide Words.
  7. 1 2 Casselman, William Gordon (2006). "The Real McCoy". Bill Casselman’s Canadian Word of the Day. Archived from the original on April 27, 2011. Retrieved March 5, 2011.
  8. 1 2 "Elijah McCoy, inventor profile". National Inventors Hall of Fame. Archived from the original on 2008-12-28.
  9. Ebony, December 1966. p. 157. Archived January 24, 2014, at the Wayback Machine
  10. Bennetta, William J. "Did Somebody Say McTrash?". The Textbook League.
  11. Boyd, Herb (2017). Black Detroit: A People's History of Self-Determination. Amistad. p. 420. ISBN   978-0-06-234662-9.
  12. Bond, James S. The rise and fall of the "Union club": or, Boy life in Canada. Yorkville, Ontario. p. 1
  13. Baulch, Vivian M. (1995-11-26). "How Detroit got its first black hospital". The Detroit News. Archived from the original on 2012-07-10.
  14. Bellis, Mary. "Biography of Elijah McCoy, American Inventor". ThoughtCo. Retrieved 2019-09-02.
  15. Black Americans 17Th Century to 21St Century: Black Struggles and Successes
  16. Ebony Archived January 24, 2014, at the Wayback Machine , December 1966. p. 157
  17. Blackman, Malorie, Noughts & Crosses, New York: Random House, 2001.
  18. 1 2 "Elijah McCoy". MichMarkers.com - The Michigan Historical Marker Web Site.
  19. "Detroit Memorial Park Cemetery". MichMarkers.com - The Michigan Historical Marker Web Site.
  20. "Elijah McCoy Home Informational Site". Detroit - The History and Future of the Motor City. University of Michigan.
  21. "Midwest Regional U.S. Patent and Trademark Office". USPTO . Retrieved May 2, 2017.
  22. Anders, Melissa (July 13, 2012). "Detroit beats Silicon Valley in opening first-ever patent office outside Washington, D.C." MLive Media Group . Retrieved July 13, 2012.
  23. Markowitz, Eric (March 1, 2012). "What Does a Patent Office Mean For Detroit?". Inc. Retrieved July 10, 2012.
  24. Kappos, David (July 13, 2012). "Remarks to Open Elijah J. McCoy USPTO Detroit Location". USPTO . Retrieved March 8, 2017.

Further reading