San Francisco Ballet continued to serve as the school's director until his retirement in 1975. In 1938, the company's first major production was "Coppélia", choreographed by Willam Christensen. In 1940, it staged "Swan Lake", the first time that the ballet was produced in its entirety by an American company. On Christmas Eve 1944, the company staged "Nutcracker"—the first complete production of Tchaikovsky's most popular piece ever danced in the United States. In 1942, San Francisco Opera Ballet split into two independent companies, ballet and opera. The ballet half was sold to Willam and Harold Christensen. Willam became artistic director, while Harold took on
Pirates of Penzance – The Ballet! which the company took it on an extended tour to the United States presented by Columbia Artists Management. Gray largely re-choreographed the work for Ballet San Jose for a 2004 revival and retitled "Pirates of Penzance – The Ballet!". In 2008, Orlando Ballet, under the direction of Bruce Marks, toured the ballet in Florida. It was again revived in November 2009 at Ballet San Jose. The "San Francisco Chronicle" reviewer wrote of the revival, "the show is a perpetual motion machine. ... Ebullient, athletic, bright as a picture book and blurrily overstuffed, Ballet San Jose's "Pirates of Penzance" is a