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Ecclesiastical Ruins on Inniscaltra, or Holy Island, Lough Derg, Co. Galway, after Sunset: "This Island is One of Great Historic Interest"... c.1863 Bartholomew Colles Watkins (1833–1891)Ecclesiastical Ruins on Inniscaltra, or Holy Island, Lough Derg, Co. Galway, after Sunset: "This Island is One of Great Historic Interest" – Petrie c.1863 Ulster Museum