Director: Prof. Pádraig Ó Riain.
Editors: Prof. Pádraig Ó Riain, Dr Diarmuid Ó Murchadha†, Dr Kevin Murray, Dr Emma Nic Cárthaigh
Assistant editor: Mr Kenneth Nicholls.
Research associate : Dr Joseph Flahive.
Database consultants (funded by The Heritage Council ): Ms Emer Purcell and Dr Joseph Flahive.
Former doctoral student (funded by An Roinn Gnóthaí Pobail, Tuaithe agus Gaeltachta [2006-9]): Dr Emma Nic Cárthaigh.
Former IRCHSS scholars: Dr Donna Thornton, Dr Emma Nic Cárthaigh [2003-6] and Dr Joseph Flahive [2004-5].
Former HEA scholar: Dr Donna Thornton [1999-2002].
Former Toyota scholars: Dr Petra S. (Tina) Hellmuth [1998-2001], Dr Aideen O'Leary and Dr Kevin Murray [1996-8].
Post-graduate students (past and present): Dr Clodagh Ní Dhubhnaigh, Dr Emma Nic Cárthaigh, Mr Diarmaid Ó Lonargáin, Ms Jutta Libera, Ms Soili Lintunen, Dr Philip Bernhardt-House, Ms Jane Sullivan and Mr Michael O'Callaghan.
In memory of the late Dr Diarmuid Ó Murchadha (1928-2012), Editor, Historical Dictionary of Gaelic Placenames
— 'Foreword' from festschrift on the occasion of his 80th birthday (JCHAS vol. 113 (2008): Foreword-JCHAS-2008