- International Distributors1
- J. L. Hopkins & Co.1
- J. L. Hopkins & Co., New York, N. Y.1
- J. L. Hopkins and Co.1
- Lanman and Kemp-Barclay and Co., Inc.1
- Lewis' Laboratory1
- Lipoidal Laboratories1
- Loeser Laboratory, Inc.1
- Louis Sampanis1
- Major Vitamins, Inc.1
- Maryland Salvage Co.1
- Metropolitan Laboratories, Inc.1
- Midwest Mineral Co., Greenwood, Ind.1
- Mulford Pharmacal Co.1
- Nathan W. Davis Laboratories1
- Neuhaus Products Co.1
- Nion Corporation, Los Angeles, Calif.1
- Parke, Davis and Co.1
- R. E. Marier Medicine Co.1
- Richmond Army Service Forces Depot1