The Denis McBrearty that you talk about being the son of Denis and Mary(nee James), did he marry Annie Collins? Then did they have many children including Peter and George? I just want to make sure that we are both talking about the same family connection.I have been trying to learn more about the family connections relating to Annie and Denis's children. So far I have found about 14 children that they had. Does that sound familiar to you? Here are the names of the children I think they had during 1882 - 1902; Annie, George, Denis, Georgina, Mabel, James, Joseph, Robert, Ellen, Francis, Frank, Annie. Perhaps you have research of your own which backs up my data. I would be interested to hear.
Other than that I don't have a lot of information about the descendants of Annie and Denis but I do have a lot more about their ancestors and other family tree branches. I would be more than willing to keep in contact with you to share information.