I don't have their dates of birth but perhaps some of the info I do have may help in finding out more. Their daughter Eliza Frances Bibber married a Albert Sargent, their residence was in Boston, MA, they had a daughter Willa Sargent. Their son Henry H. Bibber married Francinia (or Frances) A. Jones, 12 Nov. 1845, residence listed as Boston, MA. Their son Charles Bibber was born in 1838 and died 8 Oct. 1883 in Revere, MA (a suburb of Boston), married Isabel Hoxia. A lot of the Bibbers (and Harringtons since they inter-married) from Eastport moved to Boston settling in and around East Boston. Some Harpswell Bibbers moved to Boston settling in and around South Boston. From what I've pieced together from my father and from our cousin John Bibber, the East Boston and South Boston Bibbers did not communicate and younger generations wondered if they were indeed related. As a result I believe the reason for Thomas Bibber leaving Harpswell and settling in Eastport was due to a family rift that doesn't appear to have been resolved.