Yes, there are some I suspect may have been gay and/or trans in hindsight, but at the time it didn't cross my mind. Transgender wasn't even a word I'd be exposed to until decades later. It's also important to note that I went to DoDDS schools (American schools overseas, in this case Germany, for the dependents of military servicemembers) for most of my school years, which would have made keeping such things hidden even more likely.