; (C) was asked to verify the calculations when electronic computers at NASA were used to calculate the orbit for John Glenn’s Friendship 7 mission; and (D) provided calculations for NASA throughout her career, including for the Apollo missions. (4) Katherine Johnson retired from NASA in 1986. (5) Dr. Christine Darden was born on September 10, 1942, in Monroe, North Carolina. (6) In 1962, Dr. Christine Darden graduated from Hampton Institute with a B.S. in Mathematics and a teaching credential. (7) Dr. Christine Darden attended Virginia State University, where she studied aerosol physics and earned an M.S. in Applied Mathematics. (8) Dr. Christine Darden began her career in aeronautics in 1967 as a data analyst at NASA’s Langley Research Center (referred to in this section as Langley ) before being promoted to aerospace engineer in 1973. Her work in this position resulted in the production of low-boom sonic effects, which revolutionized aerodynamics design. (9) Dr. Christine Darden completed her education by earning a Ph.D. in Mechanical Engineering from George Washington University in 1983. (10) While at NASA, Dr. Christine Darden— (A) was appointed to be the leader of the Sonic Boom Team, which worked on designs to minimize the effects of sonic booms by testing wing and nose designs for supersonic aircraft; (B) wrote more than 50 articles on aeronautics design; and (C) became the first African-American to be promoted to a position in the Senior Executive Service at Langley. (11) Dorothy Vaughan was born on September 20, 1910, in Kansas City, Missouri. (12) Dorothy Vaughan began working for NACA in 1943. Vaughan— (A) started as a member of the West Area Computing unit; (B) was promoted to be the head of the West Area Computing unit, becoming NACA’s first African-American supervisor, a position that she held for 9 years