Ralph Stackpole, American sculptor and painter (d. 1973)
Ralph Ward Stackpole (May 1, 1885 – December 10, 1973) was an American sculptor, painter, muralist, etcher and art educator, San Francisco's leading artist during the 1920s and 1930s. Stackpole was involved in the art and causes of social realism, especially during the Great Depression, when he was part of the Public Works of Art Project, Federal Art Project of the Works Progress Administration, and the Treasury Department's Section of Painting and Sculpture. Stackpole was responsible for recommending that architect Timothy L. Pflueger bring Mexican muralist Diego Rivera to San Francisco to work on the San Francisco Stock Exchange and its attached office tower in 1930–31. His son Peter Stackpole became a well-known photojournalist.