- University of California Archaeological Survey15,242 objects
- University Appropriation12,691 objects
- Francis A. Riddell4,303 objects
- Robert Fleming Heizer3,294 objects
- Harry Starr Riddell Jr.3,209 objects
- Olline Riddell2,085 objects
- J. D. Howard1,572 objects
- Jeremiah B. Lillard1,540 objects
- Sacramento County Board of Education1,540 objects
- James F. O'Connell1,487 objects
- Loring J. Barker1,417 objects
- Elmer J. Dawson1,274 objects
- William S. Evans Jr.1,115 objects
- California Archaeological Survey1,083 objects
- Walter D. Weymouth939 objects
- Margaret G. Hindes790 objects
- Franklin Fenenga784 objects
- Clarence E. Smith760 objects
- Walter O. Hussa742 objects
- Kitty Joaquin620 objects