- Anheuser-Busch Brewing Association1
- Antonelli, Giacomo, 1806-1876.1
- Archuleta, Diego, 1814-1884.1
- Argonaut (Ship)1
- Arlaud, Leon.1
- Armijo, Manuel, 1792?-1853.1
- Arnold, Edwin, Sir, 1832-1904.1
- Arthur, Chester Alan, 1829-18861
- Arundel and Surrey, Thomas Howard, second earl of, 1585-1646.1
- Associated Press.1
- Avenue Theatre (New Orleans, La.)1
- Bassich, John, Jr.1
- Bastian, John, b. 1851.1
- Bear (Ship)1
- Becher, A. B. 1796-1876. (Alexander Bridport),1
- Belknap, William Goldsmith, d. 1851.1
- Bell, Henry, Captain.1
- Bent, Charles, 1799-1847.1
- Bent, George, 1814-1847.1
- Biondo Flavio, 1392-1463.1