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Rory O’Connor: To Defend the Republic

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The execution of IRA leader Rory O’Connor on 8 December 1922, along with Liam Mellows, Dick Barrett and Joe McKelvey, marked a bitter turning point in the Irish Civil War and remains one of the most infamous episodes in modern Irish history.

An unlikely revolutionary, in his early years, O’Connor qualified as an engineer and worked on the Canadian railroad. Returning to Ireland in 1915, he joined the ranks of militant Irish republicanism and became devoted to the violent overthrow of British rule. After playing his part during the Easter Rising, in its aftermath he became a key figure in rebuilding the revolutionary movement.

By the outset of the Irish War of Independence, O’Connor was the IRA’s Director of Engineering and also worked in the Dáil’s Local Government department, where he began a close friendship with Kevin O’Higgins, who would later sit on the government cabinet that approved O’Connor’s execution.

On the signing of the Anglo-Irish Treaty, O’Connor became the public face of IRA opposition to the settlement. Captured several days into the Civil War, his execution in an illegal reprisal propelled him into the pantheon of Irish republican martyrs. In this first biography of O’Connor’s life, historian Gerard Shannon brings together various archival sources and accounts to help understand this important and often enigmatic IRA figure.

288 pages, Paperback

Published April 9, 2026

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Gerard Shannon

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116 reviews
July 12, 2026
Its a very good biography however it makes no real mention of his politics outside of republicanism. the author does understand this short comings as clearly shows its an issue of a lack of source as O'Connors contemporaries also noted his lack of socio-political thought unlike Mellows and other socialists of the IRA.
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