Pádraig Óg Ó Ruairc is originally from Co. Clare. His first book with Mercier was Blood On The Banner The Republican Struggle in Clare 1913-1923 and his second book is 'The Battle for Limerick City', part of the Militrary History of the Irish Civil War. He is currently working on a third book on the Anglo-Irish Truce of 1922.
John Borgonovo is an historian and is currently a lecturer in University College Cork. The author of Spies, Informers, and the Anti-Sinn Fein Society: The Intelligence War in Cork City, 1920-1921, he has written extensively on the Irish revolution in Cork city.