Margaret Hamilton was the lead software engineer for Project Apollo.
It had long been tradition that operating calculating machines was
“women’s work”; it was thought to be just keypunching, like typing.
The bias that “women do the mere programming” extended into the early days of the computer, and it meant that many of the earliest and most pioneering programmers were women
Margaret Hamilton earned her BA in math from Earlham College, but obviously learned about programming on the job

This is a great photo I just ran across on the internets. It said it was
“Margaret Hamilton, Apollo program”, but it didn’t say who Margaret
Hamilton was.