Names
- Agassiz, Alexander, 1835-1910.1
- Aitken, Robert, 1735-1802.1
- Akst, Harry, 1894-1963.1
- Alden, Timothy, 1771-1839.1
- Alexander, Archibald, 1772-1851.1
- Alexander, James, 1691-1756.1
- Allen, Edward A. H. (Edward Augustus Holyoke), 1828-1898.1
- Allen, William H. (William Henry), 1808-1882.1
- American Academy in Rome.1
- American Anti-Slavery Society.1
- American Colonization Society.1
- American Historical Association.1
- American Society for the Diffusion of Useful Knowledge.1
- Amistad (Schooner)1
- Andrews, John, 1764-1845.1
- Angel, William Gardner, 1790-1858.1
- Angell family.1
- Angell, Alexis C. (Alexis Caswell), 1857-1932.1
- Angell, Avery Aldrich, 1807-1894.1
- Angell, James Burrill, 1829-19161