Hugh and Ann are in the June 5, 1880 census of Miles City, Custer County, Montana. He is 53 and she is 37. Living with them is Joe Rooney, age 11, who was born in "Dakotah" and his parents in Spain. He was either an adopted son or foster child. Hugh and Anna had no children themselves.
Joe is include in Hugh's will, which states "... I bequeath to my boy Joe". However, no Joe is listed in Ann Rooney's probate documents in 1885.