Thanks for the info, Jerry!
Maybe the museum has a website.
I'm running into something a little puzzling.
In searching the web for this Navy personnel classification SSML2 I'm getting hits on SURFACE vessels.
Sailors with this classification are showing up as crew members on WW2 era battleships, cruisers, destroyers, destroyer escorts, etc.
It's no big deal if I don't find out more about this, but I'm having fun learning about WW2 Navy stuff!