San Francisco Ballet School Mateo, and Oakland. After Bolm left in 1937, new Opera ballet mistress Mildred Hirch added a fencing master during her year-long direction; Willam Christensen, previously director of the Oakland Branch School, became SF Opera ballet master and full school director in 1938. As San Francisco Opera Ballet expanded its touring schedule, it became increasingly difficult for Christensen to serve in both of his professional capacities. In 1940, his brother Harold Christensen took over the position of school director. In 1942, the two Christensen brothers purchased both the ballet company and the school from the Opera Association, renaming the company San
Castro District, San Francisco of their sexuality. Many settled in the Bay Area, San Francisco and Sausalito. In San Francisco, an established gay community had begun in numerous areas including Polk Street (which used to be regarded as the city's gay center from the 1950s to the early 1980s), the Tenderloin and South of Market. The 1950s saw large amounts of families moving out of the Castro to the suburbs in what became known as the "White flight", leaving open large amounts of real estate and creating attractive locations for gay purchasers. By 1963, the Castro's first gay bar was opened called the "Missouri