Final answer:
The passage provided does not specify the founding year of Wharton SF, but discusses the career of an architect in California with notable work starting in 1919.
Step-by-step explanation:
The Wharton School of the University of Pennsylvania's San Francisco campus, commonly referred to as Wharton SF, does not have a founding year specified in the provided information. The passage discusses the career of an architect who began her practice in California after earning her certificate in 1904, but there is no direct mention of Wharton SF or its founding year.
However, the architect's significant contributions to architecture in California, perhaps most notably her long-term collaboration with William Randolph Hearst on Hearst Castle, starting in 1919, demonstrate the rich history of architectural development during that period.