Elijah McCoy
	Lewis Latimer
	Jan Ernst Matzeliger
	Granville T. Woods
	George Washington Carver
	Madam C. J. Walker
	Garrett Morgan
	Otis Boykin
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Image Credit: New York Public Library.

Elijah McCoy

Elijah McCoy (1843–1929) invented an oil-dripping cup for trains.

Fast Fact: Other inventors tried to copy McCoy's oil-dripping cup. But none of the other cups worked as well as his, so customers started asking for "the real McCoy." That's where the expression comes from.