Source: Statement of Ted O’Sullivan (1899-1971), Later Fianna Fáil TD and Senator, Gortycloona, Bantry, Co. Cork, to Bureau of Military History, Alleged Torture by Hammer and Rifle at Castletownbere by Free State Forces, Denied by William T Cosgrave who Alleged ‘He Tried to Escape’.

https://durrushistory.com/statement-of-ted-osullivan-gortycloona-bantry-co-cork-to-bureau-of-military-history/