The Mattachine Society- The group was founded by Communist organizer Harry Hay and other leftists including Bob Hull, Chuck Rowland, Dale Jennings, Konrad Stevens, James Gruber and Rudi Gernreich https://guides.loc.gov/lgbtq-studies/before-stonewall/mattachine The Mattachine Society (initially called the Mattachine Foundation) began as a secret organization in Los Angeles in 1950, with their first Statement of Purpose drawn up in 1951. The group was founded by Communist organizer Harry Hay and other leftists including Bob Hull, Chuck Rowland, Dale Jennings, Konrad Stevens, James Gruber and Rudi