Copy letter from Michael Collins, Director of Information, Irish Volunteers, to Seán O'Hegarty, Commandant, Cork Brigade, warning about a man named "Bernard Byrne" - Collins, Michael, 1890-1922; O'Hegarty, Seán, 1881-1963; Irish Volunteers; Irish Volunteers. Cork Brigade (1920)
Keywords: Collins, Michael, -- 1890-1922 -- Correspondence; Ireland -- History -- 1910-1921; Ireland -- History -- War of Independence, 1919-1921