I have found truth to be malleable in the hands of historians. Writing people out of history or rewriting history so important people are deleted or even replaced with preferred characters seems not uncommon. While some people might have heard of the first programmer ever (Lady Ada Lovelace), the names of the six females who started modern US programming were conveniently hidden from the public. So were their images. In fact, the idea that they were models posing in front of the ENIAC was encouraged. Not until Kathleen Kleiman went searching for female role-models in computer programming did the world get to hear about these six “Computers”: Kay McNulty, Jean Jennings, Betty Snyder, Marlyn Meltzer, Fran Bilas, and Ruth Lichterman.
Any person who differed from the idea of a white male persona were hidden from public mention and public viewing. Many “Computers” who were part of launching NASA’s manned rockets flights, were denied recognition.
The US were far from alone in this regards. British, names like Kathleen Booth or Stephanie Shirley, have probably not been heard of.
It is important that we realize that information will be kept from the public if it suits the purposes of the majority within any field or in any country.