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
San Francisco Botanical Garden education programs for children and adults. The Society also raises money for new projects and Garden renovations. In 2004, Strybing Arboretum changed its name to San Francisco Botanical Garden at Strybing Arboretum, and the Arboretum Society followed suit, becoming San Francisco Botanical Garden Society at Strybing Arboretum. The gardens are organized into several specialized collections: The mild Mediterranean climate is ideal for plants from surprisingly many parts of the world; the arboretum does not include greenhouses for species requiring other climate types. San Francisco Botanical Garden The San Francisco Botanical Garden at Strybing Arboretum (formerly Strybing Arboretum) is located in