I am search for Mary or Margaret O'Reilly Callahan. She is my great-great grandmother. She was from Duncrie... (spelling was not decipherable on document) County Leitrim. She was married to John Callahan (other variants of spellings have been Calyhan as well as Kellagher. She was probably born in the 1820's. Her children were Matthew, Annie, Mary (later Sr. M. Valeria), and Bridget. Another brother was Patrick Kellagher. The family homestead was supposed to Corrawallen, Mullaghboy, Co. Leitrim. The children came to Philadelphia around 1870.
I don't know if this will be helpful. It is the most recent information which I have.