Cowan, Robert Ernest. The Forgotten Characters of Old San Francisco. Including the Famous Bummer & Lazarus, and Emperor Norton. ([By] Robert Ernest Cowan, Anne Bancroft and Addie L. Ballou.) [With Illustrations, Including Plates and Portraits.]. pp. xi. 103. Los Angeles: Ward Ritchie Press, 1964. OCLC752469751"The Forgotten Characters of Old San Francisco. Including the Famous Bummer & Lazarus, and Emperor Norton," WorldCat (Dublin, Ohio: OCLC Online Computer Library Center, Inc.)