Edward Dominic O'Brien
Captain Edward Dominic O'Brien (1735 - 1 March 1801) was an Irish law enforcement official and British Army officer. Life. Edward Dominic O'Brien was the son of Capt. James O'Brien, M.P. for Youghal, and Mary Jephson. He was born in 1735 at Drogheda, while his father was serving in Parliament. Coming from a military family, at a young age, O'Brien joined the British Army and advanced quickly to the rank of Captain. He married Mary Carrick, the daughter of a Dublin attorney. In 1758, O'Brien relocated to the west of Ireland and resided with his family in Ennistymon  House. He served that year as High Sheriff of Clare, and would hold that position again in 1783 and 1787. Captain O'Brien died on 1 March 1801 at his family's estate in Rostellan, County Cork. Family. Children of Edward Dominic O'Brien and Mary Carrick: References. The History and Topography of the County of Clare