Historian and author Tom O'Neill with guests John and Mary O'Brien, from Ballymacoda. Pic: Larry Cummins. The centenary event marking the 1921 Kilworth Camp Breakout was held at Lynch Camp, Kilworth Co. Cork on 15th September 2021. The 1921 Kilworth Camp breakout was a daring endeavour by republican internees, held under military supervision, during the War of Independence.