- Autograph Letter Signed
- Industry
- Player
- President
- Product
- Signed By
- Amos Beebe Eaton (2)
- Andrew Wyeth (5)
- Brigham Young (3)
- Clara Barton (9)
- Daniel Webster (3)
- Felix Frankfurter (3)
- Henry Miller (3)
- Ira Gershwin (4)
- James A. Garfield (3)
- James Buchanan (4)
- James Garfield (3)
- John Hancock (3)
- Josephine Earp (3)
- P.t. Barnum (10)
- Robert E. Peary (3)
- Robert F. Kennedy (4)
- Ronald Reagan (7)
- Rutherford B. Hayes (3)
- Samuel L. Clemens (13)
- Wernher Von Braun (3)
- Other (676)
- Sport