I just got a letter today from Neil Kirwan, Beacon, New York with data for baptisms of seven children of Philip Kirwan and Margaret Scanlan from Couraganeen church, Bourney Parish, near Roscrea, Co. Tipperary over the period 1837 to 1846, and here are the spellings of K_____: Kirwan Kirwin Kierwan Keerevan Kieravan Kerwan Kirevan I believe these are all phonetic spellings of how the person bearing the name pronounced it. In some cases, different spellings are given for the parent's name and the sponsor's name, even though it is pretty certain they are both the same name.