- A. F. Peavey, from Tucson, Ariz.1
- A. G. Groblewski & Co.1
- A. G. Luebert, P. D.2
- A. G. Luebert, P. D:, from Coatesville, Pa.1
- A. Gustave Luebert, Coatesville, Pa.1
- A. H. Dickson1
- A. Hohensee, from Phoenix, Ariz.1
- A. J. Green1
- A. J. Timmons & Sons, Dagsboro, Del.1
- A. L. Gesche, from Spokane, Wash.1
- A. M. Jenks1
- A. Magnano & Sons, Seattle, Wash.1
- A. O. Zink.1
- A. Pfingst and Pfingst & Co., New York, N. Y.1
- A. Pfingst, a partnership, and Ernest Pfingst, New York, N. Y.1
- A. Schlessing Co., Inc.1
- A. Thomas Hart, trading as the Hart's Swedish Asthma Medicine Co. and the Hart's Asthma Medicine Co.1
- A. W. Blaine ; Larre Laboratories, Inc.1
- A. W. Thompson Co.1
- A.R.A. Manufacturing Co.2