Since the end of World War II, the major port city of San Francisco had been home to a sizable number of gay men who had been expelled from the military and decided to stay rather than return to their hometowns and face ostracism. By 1969 the Kinsey Institute believed San Francisco had more gay people per capita than any other American city; when the National Institute of Mental Health asked the institute to survey homosexuals, the Institute chose San Francisco as its focus. Milk and McKinley were among the thousands of gay men attracted to San Francisco. McKinley was a stage manager for Tom O'Horgan, a director who started his career in experimental theater, but soon graduated to much larger Broadway productions. They arrived in 1969 with the Broadway touring company of "Hair". McKinley was offered a job in the New York City production of "Jesus Christ Superstar", and their tempestuous relationship came to an end. The city appealed to Milk so much that he decided to stay, working at an investment firm. In 1970, increasingly frustrated with the political climate after the U.S. invasion of Cambodia, Milk let his hair grow long. When told to cut it, he refused and was fired.