- C.M. Foote Publishing Co. (Minneapolis, Minn.), 1892 (1)
- C.N. Speakman and Sons (Coatesville, Pennsylvania) (2)
- C.R. Childs Company (Chicago, Illinois) (2)
- C.S. Hammond & Co (New York) (2)
- C.S. Hammond & Co (New York), 1911 (1)
- C.S. Hammond & Co (New York, [New York) (1)
- C.S. Hammond & Co. (Incorporated) Engravers, Printers, Publishers 30 Church Street (Hudson Terminal) (New York) (1)
- C.S. Hammond (New York), 1911 (1)
- C.S. Hammond and Co (New York) (1)
- C.S. Jacobi Company (1)
- C.S. Wooiworth & Company (Binghamton, New York) (1)
- C.S. Woolworth & Company (2)
- C.S. Woolworth & Company (Glens Falls, New York) (1)
- C.T. American Art (1)
- C.T. American Art Colored (1)
- C.U. Williams (Bloomington, Indiana) (2)
- C.W. Davison (Minneapolis) (1)
- C.W. Hughes & Company (Mechanicville, New York) (5)
- C.W.K. Gleerups Förlag (Lund) (1)
- Cable (Chicago, 1919) (1)
