According to the Catholic Parish Registers, 1655-1915 for Kerry, Listowel, 1802-1826 Catharine Cahil was born the 13th of November. Notes the name of Elizabeth Scanlan and Thome Cahill. If this person is my great, great grandmother she was recorded being in 1851 Census Canada East, Canada West, New Brunswick and Nova Scotia with John Broderick(30), sons Cornelious (age 10) and Thomas (age 3) and death of young female infant girl as of 1851. The family is referred to as inmates and living in a shanty. Catherine and John had a baby girl named Eleanor baptised at three weeks old on March 28, 1852. There was a final attempt at birth in 1853 and that is the same year Catharen/Catherine died in Vaughan Township, York County, Ontario, Canada.
There are several other Catharine Cahils born the same year, different parents and siblings so I am not sure this person is correct. Thanks. Jennye Broderick