As for the photo, it could have just been the style of sandals back then for men.
It's possble that anyone could have been LGBT, high profile or not throughout history.
So I think I could understand the theory of relativity if Einstien would have been trans? I do know that E is energy, m is mass and c is the speed of light squared, but anything else.

I think his theories of time are really interesting but as for mathematical equations, I suck at math. If he would have been openly trans, he might not have had the recognition in Physics as he does but then again look to J. Edgar Hoover, the head of the FBI at one time and stories of him being a crossdresser? But then again the line between being a genius and being insane is awfully thin so, who knows?