Marg, After just re-establishing an 85yr old connection to Clare, I was getting quite excited at the possibility of another link. But probably not. At least the names forced me to have a closer look. Your families look to be from Ballycorey in East Clare and mine are from Milltown Malbay in West Clare. I'll also check with my new cousins in Clare. There are a few submitted trees on Ancestry both private and public, but they all seem to hit the brick wall with Michael McMahon and Ann(e) Collins. Perhaps you have an Ancestry subscription, or conversely, one of the submitters are on this list. Nevertheless, their data looks to simply cover all the Australian families which you probably have. I see they settled in Victoria. Is that where you live? I've used the Victorian Immigration Indexes often, but never been able to find the original papers from which they were derived, especially for Assisted Immigrants. Those for NSW have a host of extra detail not on the indexes. And the original shipping lists for NSW have also been digitised. Not so Victoria it seems. You could ask at Victorian State Archives. The reason for that suggestion is that I feel the last child probably didn't leave home until after their parents died. So that might help find their deaths. The new FamilySearch site has Irish Civil records after 1864. But before you get too excited, there's hundreds of deaths for Michael McMahon. So you need to get a specific timeframe. Like UK, these are by Registration District. I'm guessing Ennis would be the registration office for Ballycorey, but others may be able to confirm this. Another thought is the Clare Libary site. There are some hidden gems in their collection hidden under donated data. Oops!!! I see some of it is yours. So you know all about that. Sorry I couldn't be more help. I keep an eye on any follow up posts. Peter in Sydney