| A New fragmentary funerary monument with possible vocational symbolism at St Nicholas' Collegiate Church | Higgins, Jim | Article in Journal | | 2007 |
| Catalogue of books in the Henry library, St Nicholas' Collegiate Church Galway | | Monograph or Collective Volume | St Nicholas' Collegiate Church | 1993 |
| Galway's heritage in stone, no. 9. Part 1. The 2023 archaeological and conservation works at St Nicholas' Collegiate Church Galway [by Jim Higgins and Frank Coyne] ; Part 2 Archaeological and conservation works at Menlo Castle Galway [by Jim Higgins and Martin Fitzpatrick] | Higgins, Jim ; Coyne, Frank ; Fitzpatrick, Martin | Monograph or Collective Volume | Crow's Rock Press | 2023 |
| Monuments of St. Nicholas' Collegiate Church, Galway : a historical, genealogical and archaeological record | | Monograph or Collective Volume | F.A.S. Training | 1994 |
| Music in Saint Nicholas' Collegiate Church Galway 1480-1912 | Ó Murchadha, M. K. | Article in Journal | | 1993 |
| Note on the St. Nicholas MSS | O'Sullivan, M. D. (Mary Donovan) | Article in Journal | | 1938 |
| St Nicholas' Church | Hunt, Christine | Article in Journal | | 1993 |
| St Nicholas's parish church, Galway : structural and architectural evidence for the high medieval period | McKeon, Jim | Article in Journal | | 2009 |
| The collegiate church of St Nicholas, Galway : a study of the structure | Leask, H. G. (Harold G.) | Article in Journal | | 1936 |
| The Collegiate Church of St. Nicholas Galway | | Monograph or Collective Volume | Hely's Limited [printer] | c. 1942 |
| The Register of the parish of St Nicholas, Galway 1792-1840 | | Monograph or Collective Volume | Representative Church Body Library | 2004 |
| The story of St Nicholas' Collegiate Church, Galway | Berry, James FleetwoodHiggins, Jim | Monograph or Collective Volume | Kenny | 1989 |
| The story of St. Nicholas' : Collegiate Church, Galway | Berry, J. Fleetwood | Monograph or Collective Volume | O'Gorman | 1912 |