Mortimer Fleishhacker was born in San Francisco in 1866. He became a businessman, banker, entrepreneur, and venture capitalist involved in the electrification of California. He was active in many non-profit and educational institutions in the San Francisco Bay Area. He was a founder of the Community Chest (forerunner of the United Way) and was for many years a trustee of the University of California. He also served on the boards of many cultural organizations in the City. The Mortimer Fleishhacker Foundation was founded in 1947 by Mortimer and run with his daughter Eleanor Sloss and son Mortimer Fleishhacker Jr. The original contribution, and the only contribution for three decades, was a building at the Southwest corner of Market Street and Van Ness Avenue in San Francisco. The rent generated enough to make contributions to worthy causes but did not provide enough income for any major funding. After Mortimer Fleishhacker died in 1953, his son Mortimer Fleishhacker Jr. took over management of the Foundation. The board made yearly contributions to causes in which trustees were interested. In the 1960’s grandchildren of the founder joined the board.