Paul Allen Walker (September 29, 1946 – November 16, 1991) was an American social psychologist and founding president of HBIGDA, the Harry Benjamin International Gender Dysphoria Association now known as WPATH, the World Professional Association for Transgender Health in 1979.
Walker graduated with a doctorate in social psychology from the University of Rochester in 1976.
[citation needed] Walker began a sex offender treatment program at the University of Texas Medical Branch in Galveston, Texas, in 1976.
Walker later came out as openly gay, and he lived on Castro Street, the most popular district in San Francisco for the gay community, as he continued his practice to specially help patients to seek sex reassignment surgery (SRS) almost until his death.
Walker typically diagnosed his patients with "anxiety" to keep their identities private and confidential between the doctor and patient until beginning the real life test, now called socially transitioning.