The recruitment screen shows a line for SERVICE, which seems to be intended to show where a candidate comes from: USAF, Marines, Navy, etc. It's always blank though, so I presume this was a feature they never actually implemented in the game. If we do set up the game to handle service, someone will have to research the 'naut roster and figure out how to mark everyone. I can do that easily enough.

Civilian candidates will be a little tricky. Armstrong, for instance, might show as "NASA Engineer", and Feoktistov as "OKB-1" or "OKB-1 Engineer". Most of the Mercury 13 might be "Freelance Pilot" and Tereshkova would probably be "Factory Worker".