Comment by reef_sh
You do realize that "gay man", "transvestite", "drag queen", and "trans woman" are all different things right?
None of them implies the others. And using any term besides trans woman would be disingenuous, as trans people existed before before 1969, with that exact nomenclature already existing. Just because the letters might not have been attached to an "LGBT" title, neither T or Q are new. Only their increased acceptance and knowledge is.
And deleting references to those is, as you can see, seen as an obvious attempt to walk back on that public perception and acceptance.
While ( as often is ) a very summarized version of the history can be found on the wikipedia page https://en.wikipedia.org/wiki/Transgender_history , the sources should lead you to more detailed info, if you do care about learning about the historical accuracy.
The Stonewall Inn was a gay bar so we know that Zazu Nova must have been there due to being a gay man. As the previous iteration of the website describes Nova as "queen", "she" and "transgender woman", this means that in 1960s terminology Nova would almost certainly have been understood to be a transvestite, possibly a drag queen.
Sources on the web refer to Nova having involvement with the Street Transvestites Action Revolutionaries group, which fits with that description also.