In parish registers in the area and likely period of Catherine's birth, there are NO girls entered as "Kathleen" - indeed there are no Christian names beginning with "K".
Parish register entries for the baptisms of daughters Alexandria (Sep 1897) and Margaret Frances (Sep 1900) (later known as Frances Margaret) give the mother's Christian name as "Catherine".
Known to be alive in Sept 1917 because, on a post card sent by her daughter-in-law to her son, she was mentioned ("your mother") as having just received a letter.