Louis Graydon Sullivan (1951-91) was a writer, activist, typesetter, trans historian, and queer revolutionary. The Gay People's Union featured Sullivan's earliest writings in their newsletter including the now widely-quoted "A Transvestite Answers a Feminist". Though through his transition, many medical professionals he met had never heard of a female-to-gay-male, Sullivan resisted lying about his sexuality, a commitment which became a major aspect of his activism and legacy. Sullivan published Information for the FTM (a practical guidebook) and organized the first peer-support group for trans men. When Sullivan was diagnosed with HIV, he decided two main goals: to publish a biography of Jack Bee Garland and to publish his own diaries. He was only able to complete the former in his lifetime. Sullivan left 8.4 cubic feet of archival material from his life and studies to the GLBT Historical Society, of which he was a founding member.