- Allan, Sarah Campbell, 1861-19541
- Allen Bros. 17 Cornhill, Boston1
- Allport, Frank 1856-19351
- Allsbrook, Nina M.1
- Alman & Co.1
- Alnwick, Davison1
- Alt1
- Alvin Press Inc.1
- American Cancer Society1
- American Cystoscope Makers, Inc., New York, New York1
- American Optical, Inc.1
- Andell, Marguerite, 1884-19681
- Anderson Studio1
- Anderson, Harry, 1906-19961
- Anderson, Martha Lee (author)1
- Andre Studio1
- Andrew A. Kroeg Pharmacist, Charleston, South Carolina1
- Anglin & Randall (Atlanta, Ga.)1
- Ann Pillsbury1
- Ape1