Hi Cathy, In regards to your post I have a Mary Martin(Concannon) who died in 1951 at 82 yrs of age, in Boston, she was my GGGrandmother. She was married to a Peter Martin and had many children. Her brother John was also in Boston he died sometime between 1910-1920. Could this possibly be the ones you are searching for? I do have more information on them if this is your family line. Have a good evening.