- Brooks F. McCabe, Collector, Papers1
- Campbell Family Papers1
- Carleton Custer Pierce (1877-1958) Papers1
- Charles E. Krebs (1870-1954) Papers1
- Charles H. Freeman, (1854-1919), Engineer, Letter Book1
- Charles L. Campbell (b. 1876), Compiler, Typescripts1
- Charles McCamic (1874-1956) Papers1
- Equality Oil Company Corporation Book1
- Eugene Levassor Papers1
- Gideon D. Camden (1805-1891) Papers2
- Gordon M. Buck papers1
- H.E. Matheny, Collector and Compiler, Papers1
- Harley Martin Kilgore (1893-1956), Senator, Papers and Artifacts1
- Herbert P. McGinnis Papers1
- Holt-Keyes Families Papers1