Donor
- National Park Service45 objects
- River Basin Survey45 objects
- Albert Mohr32 objects
- University Appropriation26 objects
- James Allan Bennyhoff25 objects
- Francis A. Riddell17 objects
- R. T. Anderson17 objects
- Arthur J. Freed3 objects
- Clarence E. Smith3 objects
- Walter D. Weymouth3 objects
- William S. King3 objects