Names
- Allen, Edward A. H. (Edward Augustus Holyoke), 1828-1898.1
- Allen, William H. (William Henry), 1808-1882.1
- Altmeyer, Arthur Joseph, 1891-1972.1
- American Asylum, at Hartford, for the Education and Instruction of the Deaf and Dumb.1
- American Board of Commissioners for Foreign Missions.1
- American Jewish Committee.1
- American Jewish Joint Distribution Committee.1
- American ORT Federation.1
- American Society for the Diffusion of Useful Knowledge.1
- Anderson, Jo. (1 letter)1
- Anderson, Thomas. (2 letters)1
- Andersonville Prison.1
- Andrews, John, 1764-1845.1
- Angel, William Gardner, 1790-1858.1
- Angell, John A., 1837-1877.1
- Angell, John Wardwell, 1870-1927.1
- Angell, Nancy, 1798-1876.1
- Anonymous (1) "Revd. Sir" (someone connected with the Royal Society) (1 letter)1
- Anonymous (1)–to Walter Minto c/o Mr. Chrystie, New York. (1 letter)1
- Anonymous (2) (1 letter)1