Names
- Angell, Norman, 1874-19671
- Angus, Joseph, 1816-19021
- Arendt, Hannah, 1906-19751
- Argyll, George Douglas Campbell, Duke of, 1823-19001
- Arlen, Michael, 1895-19561
- Arthur Curtiss James residence (Newport, R.I.)1
- Arthur, T. S (Timothy Shay), 1809-18851
- Astor, Nancy Witcher Langhorne Astor, Viscountess, 1879-19641
- Astuto, Philip L.1
- Atherton, Gertrude Franklin Horn, 1857-19481
- Auburn Theological Seminary (New York, N.Y.) -- : Archives -- : Faculty1
- Auchincloss, Louis1
- Auden, W. H. (Wystan Hugh), 1907-19731
- Austin, Alfred, 1835-19131
- Avery Architectural and Fine Arts Library2
- Bacheller, Irving, 1859-19501
- Baker, Newton Diehl, 1871-19371
- Balfour, Arthur James, 1848-19302
- Bancroft, Margaret, 1891-19791
- Bank of the United States (1791-1811)1