Mathematicians

4. mathematician who built America’s first clock—a wooden device that struck hourly.
5. was an American mathematician and human computer who worked for the National Advisory Committee for Aeronautics, and NASA, at Langley Research Center in Hampton, Virginia.
6. was a mathematics educator. She was one of the first African-American women to receive a PhD in mathematics.
8. was an American computer scientist, mathematician, and rocket scientist. She worked for the Lewis Research Center of the National Aeronautics and Space Administration and its predecessor, the National Advisory Committee for Aeronautics.
9. was an American mathematician and aerospace engineer at the National Advisory Committee for Aeronautics, which in 1958 was succeeded by the National Aeronautics and Space Administration.
10. was an American mathematician whose calculations of orbital mechanics as a NASA employee were critical to the success of the first and subsequent U.S. crewed spaceflights

1. the first African-American in any field to be elected to membership of the National Academy of Sciences.
2. described in national newspapers as "the Negro genius." He was also a world-class American mathematician, mechanical engineer, and nuclear scientist.
3. was an African-American mathematician. He served as the chairman of the Clark College mathematics department from 1930 to 1974.
7. was an African American Professor of Mathematics. He received the National Association of Mathematicians Distinguished Service Award for his years of mentoring and teaching excellence.