- Jones-Hague, Inc., a corporation, and Carlos W. Jones, president and treasurer, McKeesport, Pa.1
- L. H. Stewart Corporation1
- Magnet Merchandise Co.1
- Manuel M. Lazear, trading as Northside Drug, Pittsburgh, Pa.1
- Maritime Milling Co.1
- Medical Products Institute, Inc.1
- Meditex Supply Co.1
- Mineralized Foods, Inc.; Sherman Foods, Inc.1
- Mordecai Seidman, an individual trading as M. Seidman, Pittsburgh, Pa.1
- Parry Vegetable Compound Co., Inc.1
- Pennex Products Co., Inc., Pittsburgh, Pa., and Martin Sachnoff, secretary of the corporation.1
- Purity Drug Co., Inc.1
- R. J. Strasenburgh Co.1
- Royal Manufacturing Co. of Duquesne, a corporation, Duquesne, Pa., and Koloman Kovacs, Samuel S. Kovacs, and Martin Kovacs1
- S. D. C. Laboratories, Inc.1
- Sodasal Laboratories1
- Stanley W. Danvers, trading as Nu-Age Biorganic Products, Nu-Age Products, and Nu-Age Products Co., at Loupurex, Pa.1
- Strong, Cobb & Co., Inc.1
- Sunset Feed & Grain Co., Inc.1
- T. S. Burns & Boys Co.1