Harry Boland’s Irish Revolution by David Fitzpatrick – Pages182, 212
Irish Century page 97
Popular Mechanics January 1921
Gun that made the Twenties Roar by Helmer pages53-66
Ultimate Thompson by Tracie Hill – pages 103-116
Thompson:The American Legend by Tracie Hill pages 51-66
Cork Examiner 30th December 1920
Guerilla days in Ireland by Tom Barry page 189-190, 193
Michael Collins by T P Coogan page 168
Voices and Sound of Drums by Shea pages 78-79
Michael Collin by Piearas Beaslai vol 1 pages 45,62 vol 2 page184, 215
Irish Sword various – V111 no 31 (Winter1967) – X1X no 77 (Summer 1995), XX1 no 84 (Winter 1998), and No 89 (Summer 2001)
Michael Collins and the Brotherhood – Vincent MacDowell page 80
The IRA at War 1916-23 by Peter Hart pages 178-193