Marion Johnson attended Talladega College majoring in mathematics. Upon graduating Talladega, she began her career as an Associate Engineer at The Boeing Company in 1967. Marion was assigned to the Launch Systems Branch at Boeing, and worked on the NASA project for the Marshall Space Flight Center (NASA) under the direction of the legendary Wernher von Braun and Arthur Randolph.
While working on the Boeing/NASA team in 1967, Marion was responsible for preparing data inputs for simulation of vehicle piece impact trajectories. She received significant commendations in March of 1969 for an incredible perfect score of 20 successful missions in 20 attempts. Boeing also recognized Marion for her dedication, technical competence, and high standards of achievements in contributing to America's successful First Manned Lunar Landing Mission on July 20, 1969, where Neil Armstrong said, "That's one small step for man, one giant leap for mankind."