| Exiled to New York! A United Irishman's memories | Caldwell, John, jr. | Article in Journal | | 1999 |
| Severely dealt with : growing up in Belfast and Glasgow | Caldwell, John Taylor | Monograph or Collective Volume | Northern Herald | 1993 |
| The organ in the British Isles until 1600 | Caldwell, John | Article in Journal | | 1971 |
| William Findley from west of the mountains : a politician in Pennsylvania, 1783-1791 | Caldwell, John, 1926- | Monograph or Collective Volume | Red Apple | 2000 |
| William Findley from west of the mountains : Congressman, 1791-1821 | Caldwell, John, 1926- | Monograph or Collective Volume | Red Apple | 2002 |