Longtime gay rights activist and retired San Francisco State University professor Stuart Loomis died January 17 in Oaxaca, Mexico, where he had lived for many years.

He was 102. Friends announced Mr. Loomis’ passing on Facebook. Mr. Loomis was a prominent gay activist in San Francisco, noted his friend Tim Allen.

He was a member of the early gay rights group Society for Individual Rights. He also co-founded the Haight Ashbury Free Clinic, which is now part of HealthRIGHT 360.