Patrick James Kenny of Ballycumber, County of Oaffly, Ireland

I am trying to research my Great Grandfather Patrick James Kenny. Some of the records I have show that he had a twin brother James Patrick Kenny who stayed in Ireland. They were born in 1877 to John and Ann Kenny. There was also a sister Annie but all I have on her is her death date (12/18). Patrick emigrated to New York while in his teens. Exact date is unknown. I'd like to find out more about him and his immediate family. Patrick married Margaret Mae Burke (b. 14 Feb 1876 in Dunamaggin, County of Kilkenny, Ireland), daughter of Thomas & Mary (Kennedy) Burke.