San Francisco, California office, 1980s, undated, MSP: Flat box 3, Folder: 1; MSP: Box 1, Folder: 11. Heller Ehrman historical collection, MS 4135. California Historical Society. https://californiahistoricalsociety.libraryhost.com/repositories/2/archival_objects/29902 Accessed November 22, 2024.