
Tri-Ess

Tri-Ess (Society for the Second Self) is an international educational, social, and support group for heterosexual cross-dressers, their partners, and their families.
History.
Tri-Ess was founded in 1976 by the merging of two existing groups for crossdressers, "Mamselle", a group formed by Carol Beecroft, and another group called the "Foundation for Personality Expression (FPE)", which was formed by Virginia Prince.
Tri-Ess has five chapters nationwide in the United States, and is a member of the "World Congress of Transgender Organizations".