Loretta Johnson

Creola Katherine Johnson (née Coleman, previously Goble; August 26, 1918 – February 24, 2020) was an American mathematician and human computer whose calculations of orbital mechanics as a NASA employee were critical to the success of the first and subsequent U.S. crewed spaceflights. During her 33-year career at NASA and its predecessor, the National Advisory Committee for Aeronautics, she earned a reputation for mastering complex manual calculations and helped pioneer the use of computers to pe…