I am a descendant of the above people and have researched as much as I can. I have a spreadsheet with all the information that I have. Sample:
Michael Ahern married Caroline Retchless (aka BDM register names as Retchler, Betchler, Retchliss, Rachillds and others). Their marriage certificate names Michael as HEARN and they were married 27 Dec 1877. My grandma, one of their daughters, was Mary Ann (Aunty Molly) to a lot of those who knew her.

Jenny