If you mean captain of a ship named Enterprise, then you're probably right, but beyond that, [...]
Of course, the Enterprise
; I was imprecise.
Now that I think of it, I can't remember any other LGBT captains (or admirals) besides the ones you named. The latest was (if we count all Andorians) Commander Zhrar from Fallen Gods
. Oh, and there are the suddenly lesbian encounters in the MU as well.