Creator
- A.S. Aloe Co., Germany1
- AMP Inc.1
- AMP Inc., Harrisburg, Pennsylvania1
- Aimar, G.W.1
- Alcan1
- Alford, W. D.1
- Alfred G. Trenholm1
- Allan, Sarah Campbell, 1861-19541
- Allen Bros. 17 Cornhill, Boston1
- Allport, Frank 1856-19351
- Allsbrook, Nina M.1
- Alnwick, Davison1
- American Cancer Society1
- American Cystoscope Makers, Inc., New York, New York1
- American Optical, Inc.1
- Andrew A. Kroeg Pharmacist, Charleston, South Carolina1
- Ape1
- Atkinson, A.1
- Austin, W. B.1
- Bahr, D. H.1