- University of California Archaeological Survey15,182 objects
- University Appropriation12,530 objects
- Francis A. Riddell4,269 objects
- Robert Fleming Heizer3,279 objects
- Harry Starr Riddell Jr.3,190 objects
- Olline Riddell2,082 objects
- J. D. Howard1,569 objects
- James F. O'Connell1,487 objects
- Loring J. Barker1,369 objects
- Elmer J. Dawson1,148 objects
- William S. Evans Jr.1,115 objects
- California Archaeological Survey1,077 objects
- Jeremiah B. Lillard1,073 objects
- Sacramento County Board of Education1,073 objects
- Walter D. Weymouth817 objects
- Margaret G. Hindes790 objects
- Franklin Fenenga784 objects
- Walter O. Hussa742 objects
- Clarence E. Smith705 objects
- Kitty Joaquin604 objects