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https://stairnaheireann.net/2016/12/09/1920-ira-officer-ernie-omalley-was-captured-by-british-forces-in-co-kilkenny-with-a-notebook-containing-names-of-his-ira-colleagues/
1920 – IRA officer, Ernie O’Malley, was captured by British forces in Co Kilkenny with a notebook containing names of his IRA colleagues