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- Museum number:
- 1-74553
- Object class:
- Mineral and rock samples
- Collector:
- Francis A. Riddell and Harry Starr Riddell Sr.
- Collection place:
- CA-Ker-40 (Tulamniu Mound 3), Kern County, California
- Collection date:
- April 4, 1948
- Museum number:
- 1-100323
- Object class:
- Mineral and rock samples
- Collector:
- Francis A. Riddell and Franklin Fenenga
- Collection place:
- CA-Fre-29, Fresno County, California
- Collection date:
- Summer 1948
- Museum number:
- 1-100328
- Object class:
- Mineral and rock samples
- Collector:
- Francis A. Riddell and Franklin Fenenga
- Collection place:
- CA-Fre-29, Fresno County, California
- Collection date:
- Summer 1948
- Museum number:
- 1-115417
- Object class:
- Mineral and rock samples
- Collector:
- Francis A. Riddell and William S. Evans Jr.
- Collection place:
- Lassen County, California
- Collection date:
- August 8, 1949