- Cosmopolitan Drug Co. (a partnership), Chicago, Ill., and Abraham Weinstein and Melvin Weinstein (partners) and Harold M. Weinstein (an employee of the partnership).1
- Darmon Tool & Mfg. Corp.1
- Dartell Laboratories.1
- David A. M. Levy (pharmacist for Fair Price Drug Corp.), Chicago, Ill.1
- De Caribe Rubber Co.1
- De Caribe Rubber Co., Carolina,Puerto Rico.1
- DeCaribe Rubber Co.1
- DeKoven-Calumet Drugs, Inc., Chicago, Ill., and Max M. Zenner (manager and pharmacist for the corporation).1
- Del-Ear Drugs, Inc., Chicago, Ill., t/a Douglas Drugs, and Harry Simon (secretary-treasurer of the corporation) and Austin Jones (pharmacist).1
- Dore Drugs, Inc, Chicago, Ill., and Wilber Dorfman (president and apprentice pharmacist for the corporation).1
- Dr. Sachs Laboratories.1
- Dressier Drugs (a partnership), Chicago, III, and John J. Cvopa, Jerome J. Glass, and Ernest Sallemi (pharmacists).1
- Erasurage.1
- Frieden Drug Co. (a corporation), Chicago, Ill. and Joseph Frieden (president and apprentice pharmacist) and John H. Jones (manager and pharmacist).1
- G & G Drug Co. (David Greenburg, owner).1
- Garde Drug Co.1
- George S. Zuccala.1
- Goldsmith Drug Co., Inc, Chicago, Ill., and Paul Goldsmith (vice president and secretary) and Frank Marinelli (pharmacist).1
- Goodman Drug & Liquor, Inc., Chicago, III., and Morton S. Elboom (secretary, manager, and pharmacist for the corporation).1
- Hallmark Laboratories, Inc., a corporation, Custom Chemical Laboratories, a partnership, John Korabik, president of the corporation, Chicago, Ill., and Otto K. Benca, treasurer of the corporation and partner in the partnership, Cicero, Ill.1