- University Appropriation14,098 objects
- Ronald Leroy Olson10,050 objects
- Adán Eduardo Treganza6,414 objects
- University of California, Los Angeles5,959 objects
- Phoebe Apperson Hearst4,435 objects
- Albert Mohr4,012 objects
- University of California Field Party3,021 objects
- James Allan Bennyhoff2,584 objects
- University of California Archaeological Survey2,510 objects
- Blanche Trask1,558 objects
- G. M. Stirling1,442 objects
- Santa Barbara Museum of Natural History1,442 objects
- Willard W. Hill1,442 objects
- Jeremiah B. Lillard785 objects
- Sacramento County Board of Education785 objects
- National Park Service593 objects
- Smithsonian Institution547 objects
- River Basin Survey535 objects
- Robert Fleming Heizer520 objects
- Happy Sharp484 objects