| Bishop George Montgomery, 1569-1621 | Meehan, Helen | Article in Journal | | 2007 |
| Bishop George Montgomery’s Survey of the parishes of Derry diocese : a complete text from c.1609 | Jefferies, Henry A. | Article in Journal | | 1996 |
| George Montgomery, first Protestant Bishop of Clogher (1605-1621) | Jefferies, Henry A. | Article in Journal | | 1999 |
| George Montgomery, first Protestant bishop of Derry, Raphoe and Clogher (1605-10) | Jefferies, Henry A. | Article in Book | | 2000 |
| The flight of the earls | Boyle, Alexander | Article in Journal | | 1955 |
| The plundered tates : Cahill Duff O Connally and the bishop's land in Clones parish | Schlegel, Donald M. | Article in Journal | | 1991 |
| When Raphoe first had two bishops | Meehan, Helen | Article in Journal | | 2002 |