- Consolidated Gas Corporation, Gift.7
- Consolidated Oil Corporation, Gift.1
- Consolidation Coal Company14
- Cook, Dr. Roy Bird3
- Cook, Ray Bird1
- Cook, Roy Bird1
- Cook, Roy Bird73
- Cook, Roy Bird; Copy from original owned by Ernest Shewey, Charleston, W.Va. 19251
- Copied from WVC. Vert. File Chas. Gaz. mag. sec. 8/25/19571
- Copied from WVC. Vert. File clip. Chas. Goz. mag. sec. 8/25/19571
- Corcoran Gallery of Art.. Wash., D.C. (orig. in C.G. of A.)1
- Core, Earl by A.C. Shively (deceased), Gift.1
- Costa, Jim1
- Costa, Jim1
- Cowan, C. Wesley, Auctioneer1
- Crabtree, Mark through Ron Jay1
- Craigo, Robert7
- Crimone, Teresa1
- Criss, Richard1
- Cuthbert, John3