Jean Jennings Bartik (1924-2011) was born on a farm in Gentry County, Missouri. She “read voraciously as a child and longed to leave Missouri. She saw marriage as an impediment to her desire for adventure claiming, “Why would I want to get married I haven’t been anywhere I haven’t done anything.'” Jean majored in mathematics in school and worked on a project where she first manually calculated ballistics trajectories and eventually taught the first electronic digital computer, the ENIAC, to do those calculations.