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Mary Beatrice Davidson Kenner
Mary Beatrice Davidson Kenner was an African-American inventor who created several life-changing devices. Learn about her groundbreaking inventions and legacy.
![Mark Dean](https://images.squarespace-cdn.com/content/v1/5ea9ca072e0ac350086db733/1624276400718-X631XB8H2P5VO3U9O0LY/Mark-Dean-profile_unique-coloring.jpg)
![Lewis Howard Latimer](https://images.squarespace-cdn.com/content/v1/5ea9ca072e0ac350086db733/1619369867050-JND1FQ25MACUL0G5IXF5/Lewis-Howard-Latimer_unique-coloring.jpg)
Lewis Howard Latimer
Lewis Howard Latimer was a black inventor and engineer who contributed to the patenting and improvement of the incandescent light bulb and the telephone.
![Marian R. Croak](https://images.squarespace-cdn.com/content/v1/5ea9ca072e0ac350086db733/1614712415546-O6RQEED47Z8CB94L7ANY/Marian-R-Croak_unique-coloring.jpg)
Marian R. Croak
Marian R. Croak, the soft-spoken genius behind VoIP, has risen to the top of a male-dominated field and changed the world by rethinking technology.
![Frederick McKinley Jones](https://images.squarespace-cdn.com/content/v1/5ea9ca072e0ac350086db733/1614709740448-ALRNWPYTEJ6HTGIQZCUR/Frederick-McKinley-Jones_unique-coloring.jpg)
Frederick McKinley Jones
Frederick McKinley Jones may not be a household name, but his inventions are in wide use across the American landscape. He earned the title “The King of Cool” by revolutionizing transport refrigeration.