- C. A. Bell1
- C. A. Gross & Co., Inc.1
- C. G. Rooks1
- C. Powders, Greenville, N. H.1
- Celery Cracker Medicine Company, of Manchester, N. H.1
- Cephalgine Co.1
- Charles E. Farley, trading as Botanical & Marine Laboratories, Manchester, N. H.1
- Chauncey B. Littlefield, Olive Rand Clarke, Arthur E. Clarke, and William C. Clarke, trading as Littlefield & Co., Manchester, N. H.1
- Commercial Laboratories, Inc.1
- Cosmos Food Stores, Inc.1
- Cotec Co.1
- D. A. Previte1
- David Thall, trading as Thall's Home Remedy Laboratory, Manchester, N.H.1
- Delca Fish Preservators, Inc.1
- Dodge-Freedman Poultry Co.1
- E. B. Holton, Webster, N. Y.1
- Electricooker Sales, Inc., c/o John W. Leavitt Co.1
- Enoch Packing Co.1
- F. E. Jewett & Co.1
- F. P. Adams Co. (Inc.)1