
Bill Gannon, well-known militant of the Irish Republican Army (IRA) and later a leading member of the Communist Party of Ireland, is born on June 23, 1902.
Gannon fights in the Irish War of Independence. In the Irish Civil War, he takes the anti-Treaty side and is among the force which seizes the Four Courts in Dublin.
After the defeat of his side, Gannon spends a considerable time under internment together with numerous others. He is completely unreconciled to the victory of the “Free Staters,” and together with two fellow detainees, Archie Doyle and Timothy Coughlin, take part in forming a secret “vengeance grouping.” The three vow that once free of imprisonment they will take revenge on their opponents, whom they consider traitors to the Irish cause.
Most such private revenge pacts are broken up by the IRA leadership when it reorganises after 1924, but Gannon and his two fellow conspirators persist and carry through their deadly aim. The act which first makes Gannon, Doyle and Coughlin well-known is the assassination of Minister for Justice Kevin O’Higgins. On Sunday, July 10, 1927, the three surprise O’Higgins on the Booterstown Avenue side of Cross Avenue in Blackrock, County Dublin, and shoot him down.
O’Higgins is especially hated by IRA members for having ordered the executions of seventy-seven of their fellows during the Civil War, an act for which he outspokenly took responsibility and refused to express any remorse. Moreover, he was a dominant member of the Free State government, and the conspirators had good reasons to believe that his death would weaken it.
None of the three is ever apprehended or charged with the assassination, though Coughlin is killed by a police informer in 1928 under circumstances which remain controversial up to the present. Gannon and Doyle benefit from the amnesty for IRA members issued by Éamon de Valera on his accession to power in 1932, and after that date they can openly admit their part in assassinating O’Higgins without fear of being prosecuted.
By this time, Gannon has already turned to the Left and become a leading member of the Communist Party of Ireland when it is refounded in 1933. This decision is possibly influenced by Donal O’Reilly, his lifelong companion who had been with him at the Four Courts and who already joined the Communist Party in its earlier incarnation under Roddy Connolly. The radical left-wing commentator Jack Cleary approvingly mentions Gannon as among the few IRA militants who have “given up the gun in favor of working-class politics.” This is in marked contrast to Gannon’s aforementioned fellow-assassin Archie Doyle, who continues to take part in IRA armed raids well into the 1940s.
Being an Irish Communist in these years carries, however, its own risks. Gannon is mentioned as being among the defenders of Connolly House, the party’s Dublin headquarters, when it is attacked and ultimately set on fire by a right-wing mob in 1933. In subsequent years Communists continue to suffer constant harassment, often descending into outright violence.
Gannon is at present mainly remembered for his major part in organising Irish volunteers (the Connolly Column) to fight on the Republican side in the Spanish Civil War, a work undertaken in close co-operation with Frank Ryan and Peadar O’Donnell, and which comes to overshadow his earlier fame (or notoriety) in connection with the O’Higgins assassination.
Gannon dies at the age of 63 on September 12, 1965. He gets a well-attended party funeral; his coffin being draped with a red flag and the Irish Tricolor.
