"On page 170 of "First Book Of Records Of The Town Of Pepperellborough, Now The City Of Saco Portland, Maine." Thomas Brannan b. 12-25-1755 married Mary b. 6-16-1755...children born in Saco: Rufus 7-4-1786 Thomas 8-1-1790 Nancy 3-16-1794. On pg 220 of the same source is states that the above Thomas b. 8-1-1790 died 11-30-1799. Also on pg 170 of this source it lists another Thomas Brannan and Sarah his wife b. 4-23-1773 Saco and lists children: Mary Ann 7-4-1806 Thomas Jr. 9-24-1808 Daniel 11-1-1810 John 7-19-1813 Samuel 3-2-1819."
Several diff. sources state Samuel Brannan of California fame was the son of Thomas Brannan and Sarah Knox Emery and the names of children and their dates of birth match this second Thomas Brannan. The dates of birth of the children make it feasible that Thomas Brannan who m. Mary to be the same person as Thomas Brannan who m. Sarah Knox. That would mean however that Thomas was age 65 when Samuel was born. What do you think? Are the two Thomas Brannans the same as yours b. 1755?