The most prolific and arguably the greatest producer of biographical succession lists of the Anglican clergy in Ireland was Canon James Blennerhassett Leslie, Rector of Kilsaran, Co. Louth. Leslie was a meticulous scholar who spent many hours over many years gathering and recording information from a huge variety of sources.
The first of Canon Leslie’s volumes was 'Armagh Clergy and Parishes', which appeared in 1911 (a Supplement appeared in 1948). The other volumes produced by Leslie were 'Clogher Clergy and Parishes' (1929), 'Ossory Clergy and Parishes' (1933), 'Ferns Clergy and Parishes' (1936), 'Derry Clergy and Parishes' (1937), 'Ardfert and Aghadoe Clergy and Parishes' (1940) and 'Raphoe Clergy and Parishes' (1940). With Dean H.B. Swanzy, he published 'Succession Lists of the Diocese of Dromore' (1933) and 'Biographical Succession Lists of the Clergy of the Diocese of Down' (1936).
Through the work of individuals like Fred Rankin, Canon David Crooks, W.J.R. Wallace, Canon W.E.C. Fleming, Dean Thomas Moore, Geraldine Fitzgerald and Geraldine Willis (former librarians at the Representative Church Body library), 14 volumes of clergy succession lists have been published (or republished and updated) since 1993: