I am from the "Old Forge Hennigans" My paternal grandfather was Michael J. Hennigan. He was married to a German American woman from Scranton named Wright. He abandoned the family and probably headed for Chicago with the railroad jobs. My Dad went to St Thomas School in Old Forge. He had a sister named Dolores and I think a sister named Mae. I found some relatives in Ireland and Tennesee. All seem to have the "Hennigan Notch" a slight notch in the top edge of the right ear. Sorry for the strange and scattered info it reflects my heritage and inexperience.
Mike