It's just an idle thought, but... like, the original
Your Mother's Son in Law was a fairly subversive song for the time -- you had this young lady basically saying, "Look, you don't have to be some kind of impressive guy, just marry me", which was not exactly a culturally normative statement at the time for a number of reasons. "My mother's Son-in-Law" -- young woman lead, somewhat abnormal There was an arrangement not long after with
a male singer that swapped up the lyrics a bit and made it significantly less subversive by dint of it suddenly being an older dude saying more or less that they didn't have to be that impressive, just marry them anyway (on top of some other things, it was a much more standard sort of message for the time). "Your mother's Son-in-Law" -- male lead, bog standard heteronormative message.
... the thought, though, was that if there'd been a hypothetical version -- if it
was done, it wasn't popularized in any sense -- that just,
just genderflipped the singer, well. That would have been a song that might have gotten the singer killed in the 1930s, because suddenly you have a guy saying they want someone to be
their mother's son in law. I.e. that's all that it takes to make the song gay as hell.
Anyway, the random thought was just ranking the songs in terms of subversion for time of publication, which was Six Swingers <<< Holiday < Hypothetical Literally Gay Version.