More information about these Feeneys: John Fenney had at least two brothers - Owen and Frank. They were from Ballinafad, Strokestown, Roscommon.
Owen Feeney married Mary Ryan and had Patrick 2/1, 1833 (only child). Owen came to the States in late 1834, leaving his wife and child in Ireland. He worked as a foreman on the railroad near Toledo, OH. He contracted fever and died after a year. When his son Patrick was 16, he was sent to his Uncle John (already discussed) who was a foreman in the coal mines near Pottsville, PA. Patrick later went to Chicago and became a Captain in the Civil War, at the urging of Father Dunne (then Vicar General in Chicago) and his command became known as Father Dunne's Army or the Irish Legion of Illinois. After the war, Patrick became an attorney. He married Delia Phillips and had 6 children but I believe most of them died. At least one of John's children (James) also moved to Chicago.
John Feeney had another brother, Frank. Frank lived in Altoona, PA but I have not researched him yet.