San Francisco Ballet from American popular culture, Harold and Lew joined George Balanchine's new company, American Ballet, in 1935. In 1932, Willam formed a ballet school in Portland, Oregon; in 1937, he was engaged as principal male soloist by San Francisco Opera Ballet. He became the company's ballet master and choreographer in 1938. With his brother Harold, he purchased the company from the Opera in 1942, renaming it San Francisco Ballet. In 1951, Willam retired as director of SF Ballet and moved to Utah, where he started teaching ballet in the country’s first university ballet department at the University of Utah. With a
San Francisco Ballet de Coteau's battle with terminal cancer forced him to step down from the position. Emil de Cou, who had been serving as conductor since 1995, then assumed the role of music director, leading the Orchestra until 2001, when he left to join Washington D.C.'s National Symphony Orchestra. He was replaced by first associate conductor Jean-Louis LeRoux, who then left the interim position in 2003 and was succeeded by Andrew Mogrelia. In 2005, Mogrelia left in order to focus on his duties as music director at San Francisco Conservatory of Music. That same year, Martin West, frequent guest conductor for the