I realize your original post pertaining to the Dunn's was from some time ago, but I just recently signed up for ancestry and was wondering if you had been able to find much information on the Dunn's from Connecticut. I found quite a bit on a post pertaining to "Mahala" Dunn.
I have only been able to trace back to James and was hoping to find out where he came from (i.e. Did the Dunn's immigrate from Ireland. If so, when).