Administrative records, slides, photographs, film, video recordings, sound recordings, objects, textiles, buttons, and ephemera from the Blue Max Motorcycle Club, a gay motorcycle club founded in Los Angeles in 1968. The materials document club events such as motorcycle runs, anniversary celebrations, fundraisers, officer ceremonies, gay pride festivities, and other events.

Photographs, correspondence, and other materials relating to the life and family of Bruce Bradbury (1923-1992). The documents include family correspondence, photographs, and 8-mm home movies. Other photographs, correspondence, and materials document Bradbury's service in the United States Merchant Marine, his creative writing (including a typescript of his novel Who Are You, Billy Bingleman?), and his interest in motorcycles and tattoos.

Event flyers, paste-ups, programs, notes and membership certificates from Southern California gay motorcycle clubs, 1967-1994, collected by Peter Bromilow. The collection documents Bromilow's participation in several gay motorcycle clubs, dating back to the 1960s.

Avengers Motorcycle Club administrative records, subject files on gay and lesbian organizations, and personal papers, 1931-1988, from Richard Denton. Denton worked as a minister and librarian for Presbyterian churches throughout California. In the 1970s he became a member and officer of Avengers, a gay motorcycle club.

Fliers, trading cards, and event materials from Cunt Club L.A., Dapper Dyke, Dyke March Los Angeles, and the Women Moto-cyclists collected by Vivian Escalante, the founder of Dapper Dyke and the Women Moto-cyclists of Southern California.

The Oedipus Motorcycle Club is a gay motorcycle club founded in Los Angeles in 1958. It is the second oldest gay motorcycle club in Los Angeles and one of the oldest still existing today. The collection consists of administrative records, correspondence, photographs, scrapbooks, objects, textiles, buttons, and ephemera that document club events such as motorcycle runs, anniversary celebrations, fundraisers, officer ceremonies, gay pride festivities, and other events.