| Title | Date | Type | Setname | ||
|---|---|---|---|---|---|
| 1926 |
 | Clay, Wallace OH10_137 | 1973 | Text | wsu_stu_oh |
| 1927 |
| Clegg, Joseph Allan OH10_277 | 2003 | Text | wsu_stu_oh |
| 1928 |
| Clement, Arlene Truszinski OH6_010 | 2010 | Text; Image/StillImage; Image/MovingImage | wsu_stben_oh |
| 1929 |
 | Cleverly, Agnes OH10_252 | 1998 | Text | wsu_stu_oh |
| 1930 |
 | Clyde, Laura_DNP_2021 | 2021 | Text | wsu_atdson |
| 1931 |
| Coder, Otto OH10_081 | 1971 | Text | wsu_stu_oh |
| 1932 |
| Coil, James OH10_050 | 1971 | Text | wsu_stu_oh |
| 1933 |
| Collins, Bettie Jean OH19_063 | 2019 | Text; Image/StillImage; Image/MovingImage | wsu_bs_oh |
| 1934 |
 | Collinwood, Angie MED_2024 | 2024 | Text | wsu_smt |
| 1935 |
| Collman, Audrey OH12_031 | 2013 | Image/MovingImage; Text | wsu_webda_oh |
| 1936 |
| Colvin, Bob and Stallings, Howard OH10_138 | 1973 | Text | wsu_stu_oh |
| 1937 |
| Colvin, Delsa OH10_324 | 2008 | Text | wsu_stu_oh |
| 1938 |
| Compton, Joseph OH10_031 | 1971 | Text | wsu_stu_oh |
| 1939 |
| Condon, Pat OH24_003 | 2019 | Text; Image/StillImage | wsu_webda_oh |
| 1940 |
 | Congratulatory Letters | 1961 | Text | wsu_ucc_ed |
| 1941 |
| Connell, Shirley OH10_349 | 2008 | Text | wsu_stu_oh |
| 1942 |
| Cooper Larsen, Desiree OH19_009 | 2019 | Text; Image/StillImage; Image/MovingImage | wsu_bs_oh |
| 1943 |
| Cooper, Gary Allen OH15_008 | 2015 | Text; Image/StillImage | wsu_webda_oh |
| 1944 |
 | Cope, Aaron MENG_2024 | 2024 | Text | wsu_smt |
| 1945 |
| Cornia, Maurine OH10_213 | 1980 | Text | wsu_stu_oh |
| 1946 |
| Cottle, Zina OH7_013 | 1960; 1961; 1962; 1963; 1964; 1965; 1966; 1967; 1968; 1969; 1970 | Text | wsu_webda_oh |
| 1947 |
| Cotton, Joyce OH18_011 | 2017 | Text; Image/StillImage | wsu_webda_oh |
| 1948 |
 | Cox, Conner MED_2025 | 2025 | Text | wsu_smt |
| 1949 |
| Cox, Lucille OH18_012 | 2017 | Text; Image/StillImage | wsu_webda_oh |
| 1950 |
| Cox, Paul OH10_376 | 2011 | Text | wsu_stu_oh |