Normally, I wouldn't consider this a big deal. But Dr. Mazo was an openly gay pediatrician living with his partner in conservative Savannah, GA in the fifties, sixties, and seventies. He was also considered one of the top best pediatricians in the city. I never knew about his gayness until I had moved onto an "adult" doctor, but certainly my parents knew.
After retirement, he and Billy moved to Atlanta. I regret that I never had the chance to talk with him after I came about much later. I regret that I never had the chance to meet Billy--in fact I never even knew his last name until I read it in the obituary.