Hi - my name is Allison Clifford and I am responding to your post re having a copy of Ton and Nora Cronin's marriage certificate. My Great Great Grandparents: Timothy Murphy (from Bedford) and Margaret Cronin have Nora and Tim listed as godparents for 3 of thier children:
Bart: b 1878
Mary: b 1880
Patrick: b 1881
I can only hypothesis that Tim Cronin was brother to my Great Great Grandmother. Do you have any records of a Margaret Cronin??