Thank you, Scottish Lass! I appreciate your looking. I have tried all the different spellings in Ireland, Scotland and England. Without a parent or even sibling of my gggrandmother Mary, it's impossible. All I know is that she and James Callahan are my ggmother's parents... and that there may be a Gibbons connection. I was hoping maybe the Regina who 'knows a ton' that Bob mentioned might be able to help me? I'll keep looking for a marriage cert. Good luck in your own research!