| An old Dublin vestry book | Leslie, J. B. (James Blennerhassett) | Article in Journal | | 1943 |
| Ardfert & Aghadoe clergy and parishes : being an account of the clergy of the Church of Ireland in the Diocese of Ardfert and Aghadoe from the earliest period, with historical notices of the several parishes, churches, etc. | Leslie, J. B. (James Blennerhassett) | Monograph or Collective Volume | Church of Ireland Printing and Publishing Co. | 1940 |
| Armagh clergy and parishes : being an account of the clergy of the Church of Ireland in the Diocese of Armagh, from the earliest period, with historical notices of the several parishes, churches, &c | Leslie, J. B. (James Blennerhassett) | Monograph or Collective Volume | W. Tempest | 1911 |
| Biographical succession lists of the clergy of Diocese of Down | Leslie, J. B. (James Blennerhassett)Swanzy, Henry B. | Monograph or Collective Volume | Printed and published at the 'Fermanagh Times' Office by R.H. Ritchie | 1936 |
| Catalogue of manuscripts in possession of the Representative Church Body, ... Dublin | Leslie, J. B. (James Blennerhassett) | Monograph or Collective Volume | | 1938 |
| Catalogue of manuscripts.... collected by the Ecclesiastical Records Committee | Leslie, J. B. (James Blennerhassett)Representative Church Body, Dublin | Monograph or Collective Volume | [s.n.] | 1938 |
| Cess payers of Dunleer union of parishes, 1786-92 | | Article in Journal | | 1939 |
| Clergy of Clogher : biographical succession lists | Leslie, J. B. (James Blennerhassett) | Monograph or Collective Volume | Ulster Historical Foundation | 2006 |
| Clergy of Connor : from patrician times to the present day | Leslie, J. B. (James Blennerhassett) | Monograph or Collective Volume | Ulster Historical Foundation | 1993 |
| Clergy of Down and Dromore | | Monograph or Collective Volume | Ulster Historical Foundation | 1996 |
| Clergy of Killaloe, Kilfenora, Clonfert and Kilmacduagh | Leslie, J. B. (James Blennerhassett) | Monograph or Collective Volume | Ulster Historical Foundation and Diocesan Council of Limerick and Killaloe | 2010 |
| Clogher clergy and parishes : being an account of the clergy of the Church of Ireland in the Diocese of Clogher, from the earliest period, with historical notices of the several parishes, churches, etc. | Leslie, J. B. (James Blennerhassett) | Monograph or Collective Volume | Printed for the author at the 'Fermanagh Times' Office by R.H. Ritchie | 1929 |
| Derry clergy and parishes : being an account of the clergy of the Church of Ireland in the Diocese of Derry, from the earliest period : with historical notices of the several parishes, churches, etc | Leslie, J. B. (James Blennerhassett) | Monograph or Collective Volume | Printed for the author at the 'Fermanagh Times' Office by R.H. Ritchie | 1937 |
| Ferns clergy and parishes : being an account of the clergy of the Church of Ireland in the Diocese of Ferns, from the earliest period, with historical notices of the several parishes, churches, etc | Leslie, J. B. (James Blennerhassett) | Monograph or Collective Volume | Printed for the Author by the Church of Ireland Printing and Publishing Co. | 1936 |
| History of Kilsaran | Leslie, J. B. (James Blennerhassett) | Monograph or Collective Volume | | 1908 |
| Indexed list of wills of residents in Dundalk and district | Leslie, J. B. (James Blennerhassett) | Article in Journal | | 1942 |
| Inquisition concerning the parishes of Co. Louth 1658 | Leslie, J. B. (James Blennerhassett) | Article in Journal | | 1929 |
| O'Morchoe's history of Kilternan and Kilgobbin | O'Morchoe, The | Monograph or Collective Volume | Church of Ireland Printing & Publishing Co. | 1934 |
| Ossory clergy and parishes : being an account of the clergy of the Church of Ireland in the Diocese of Ossory, from the earliest period, with historical notices of the several parishes, churches, etc. | Leslie, J. B. (James Blennerhassett) | Monograph or Collective Volume | Printed and published at the 'Fermanagh Times' Office by R.H. Ritchie | 1933 |
| Raphoe clergy and parishes : being an account of the clergy of the Church of Ireland in the Diocese of Raphoe, from the earliest period, with historical notices of the several parishes, churches, etc. | Leslie, J. B. (James Blennerhassett) | Monograph or Collective Volume | Printed for the author at the 'Fermanagh Times' Office by R.H. Ritchie | 1940 |
| Supplement to "Armagh clergy & parishes" : continuation of the biographical succession lists of the clergy of Armagh diocese up to 1947 with additions--pre-Reformation and post-Reformation and corrections and notes | Leslie, J. B. (James Blennerhassett) | Monograph or Collective Volume | W. Tempest | 1948 |