I hope the following is helpful. Fr. Hehir used to visit my family (O'Hares - Clare to Boston in 1845). My father (deceased)mentioned him to me a few time over the years, and an uncle (now in his early 80's) remembers him. He was reportedly a first cousin of my great grandfather, Joseph O'Hare (1850-1917). Joseph was born in Boston, but his parents both emigrated from Ireland in 1845. Joseph's father was Michael O'Hare (1817-1883), son of John and Mary O'Hare of Kilfidane, Killadysaret, Co. Clare. His mother was Mary Halloran also believed to be from Clare. How the first cousin linkage occurs is unclear, but it's most likely we changed the Hehir spelling somewhere along the line. Another source of information who might provide you further Cunningham-Hehir links is a Fr. Cunningham born in Clare now stationed in Edmonton Alberta. Fr. Cunningham was born in Co. Clare.