hi Holly,
St. Columbs is the local Roman Catholic church to the addresses I have so it seemed the obvious place to check for records. It was confirmed as used for baptism of Mary Norah Miller 29 Dec. 1943,burrial of Robert Miller 22 Dec.1950 and burial of Mary Miller 27 April 2011.
The birth 1 Dec. 1918 is the closest I can get.If I can find she has the right siblings, then she is the one.
bigjon