- Almada, André Álvares d'1
- American Bank Note Company1
- American Coal & Coke Corporation.1
- American Loan & Trust Company1
- Anderson, John (Surveyor)1
- Andrewes, R. (Robert),Stone, William James, 1798-1865.1
- Andrews, Robert E., creator1
- Andriveau-Goujon, E. (Eugène), 1832-18971
- Andriveau-Goujon, J.1
- André, Peter, engraver.1
- Ann Arbor (Mich.). Board of Commerce1
- Ann Arbor Federal Savings1
- Ann Arbor Press1
- Ann Arbor Railroad Company1
- Année Cartographique1
- Antisell, Thomas, 1817-18931
- Appalachian Mountain Club1
- Atwood, John M., approximately 1818-1
- Ayde, E. F.1
- Baarsel, C. van (Cornelius)1