- John L. Tarlow, trading as Tarlow Drug, at Boston, Mass.1
- Lewis Manufacturing Co.1
- Linus D. Drury Corp., trading as Drury's Pharmacy, Boston, Mass., and Ralph E. Anderson, treasurer of the corporation.1
- Meditex Supply Co.1
- Merck & Co., Inc.1
- Nathan Stoller, trading as Stoller's Pharmacy, Boston, Mass.1
- Nature Food Centres, Inc.1
- Paul Case, Brockton, Mass.1
- Red Mill Drug Co.1
- Red Star Pharmacy, Inc., trading as J. F. Epstein Drugs, Boston, Mass., and Jerome F. Epstein, president-treasurer of the corporation.1
- Requa Manufacturing Co.1
- Roma Extract Co., Inc., Boston, Mass., and Vincenzo Contrino1
- Roma Extract Co., a partnership, Boston, Mass., and Vincenzo Contrino and Joseph Graceffa, partners.1
- Samuel L. Cohen, trading as Bunker Hill Drug, Charlestown, Mass.1
- Sexton Drug Store, a corporation trading as the Belmont Co., at Springfield, Mass.1
- Stratford-Cookson Co.1
- Surgical Dressings, Inc., Boston, Mass.1
- T. Noonan & Sons Co., a corporation, Boston, Mass.1
- Thomas E. Connor, trading as the Cotec Co., at Lynn, Mass.1
- Tyler Products Co.1