Well, I'm impressed to see that you found their address. Must have run the census. Sounds like we may have something here.
I have most of the city directory pages from that time and some obits on two of their young daughters that give addresses. Also an obit on Margaret that gives an address and lets me know that Patrick was still alive.
Shall we meet off the message board or do you want to keep posting so others can see?
I will look at the directory pages with Thomas in mind.