[5] She returned to Ireland, possibly to Ballinlough in Cork, to "look after her recently widowed father" and obtained a clerical job in Victoria Barracks.
[5] With access to materials from the office of the British Army commander in Cork, General Peter Strickland,[9] she became one of O'Donoghue's most important intelligence agents.
[citation needed] Among the documents intercepted at the barracks was a letter from George Bernard O'Connor (of Rochestown) which reportedly included information on the movements of IRA members in the area.
[10] This letter, considered by Florence O'Donoghue to be "clear cut [evidence] of informing", resulted in O'Connor being shot dead by the IRA.
[1][3] In her Military Service Pension application, submitted in the name Josephine O'Donoghue in 1939, she lists Seán O'Hegarty and Terence MacSwiney as the "officers commanding" of the IRA unit (Cork No.
[3] A play, written by Gerry White and titled The Soldier and the Spy, is based on the life of Josephine Marchment and Florence O'Donoghue.