My name is Eric. Only about 10 years late in replying, so not sure you are still monitoring.
I am a descendant of James John Breen (my grandfather)...Paul and Mary's brother. I have a number of photos from the Breen family history. Although, to be honest, the names of some of the photo subjects may be lost to history.
If you are still monitoring this thread, I am about 80% certain that the first attached photo is (left to right) Mary, James, and Paul as young children.
Also, attached is what I am almost certain is their father John Breen (left) who strongly resembles my own grandfather. The other two adults (left to right) I am less certain about. But, I believe it is likely Mary (Breen) O'Connor and her husband John. The children are most likely their children.
If you are still monitoring, I have additional data. Just not sure how to share it off-line so as not to burden this thread. Hopefully, the photo's got attached. If not, I can e-mail directly.
A lot of the this Breen history traces to Lewiston and Biddeford.