INNISBIGLE, or INISHEGIL, an island, in the parish of KILCOMMON, barony of ERRIS, county of MAYO, and province of CONNAUGHT: the population is returned with the parish. It is situated at the entrance of the bay of Ballan, and contiguous to the island of Achill, on the western coast; and comprises 800 acres of bog and mountain, the property of Sir Richard A. O'Donel, Bart.

(Samuel Lewis, A Topographical Dictionary of Ireland (1837); Transcription © Derek Rowlinson, 2005-10. Reproduced from LibraryIreland. We are deeply grateful to LibraryIreland for allowing us to use their transcription.)