My father is from Lowell (surname is Mann) and his mother was Catherine Bamford.
I am going to be going through some letters written about my grandmother's family and will be posting information to the family tree. If I find anything specific I would be more then happy to share it with you.
According to my dad several of the Bamford's are buried at St. Patrick's Cemetery: http://stpatrickcemetery.com/
They do a nice job with their Burial Listings and there are several Bamford's listed.