Mr Red: Yes, McClintock's original Big Rock Candy Mountain mentioned homosexuality, tho only from the point of view of a young man who was tired of being raped.

One might also mention "Stripey and Blondie", a British Navy takeoff on "Frankie and Johnny" collected by Cyril Tawney of blessed memory. The heroine, discovering that her sailor man is two-timing her with another sailor, blows up the entire bar containing them.