Michael,
Do you know the names of Bridget Patt's parents?
I am researching the Patts from Ballylongford as my great-great grandmother was Bridget Patt who married John Quinn on May 2, 1835 (in Ballylongford). It appears my Bridget Patt was from one generation previous to your Bridget Patt's generation.
I was in Ballylongford in January and found the following marriages for Bridget Patt listed in the church's records:
Bridget from Ahanagran marrying Daniel Buckley in January 1859;
Bridget marrying Robert Cahill on July 10, 1862;
Bridget marrying John Connolly in November 1858;
Bridget from Coolnagraga marrying Patrick Kennelly on February 21, 1873 (with her parents being John Patt & Helen Enright);
Bridget from Coolnagraga marrying John Quinn on May 2, 1835 [my great-great grandparents].
I didn't find any marriage record for a Bridget Patt & Michael Keane.
Do you have any more information on the Patt family in Ballylongford?