I know this is a bit late but that Abigail Adams is an aunt by marriage to John Adams the President.
As for the Burroughs Elizabeth m 1676 Ebenezer Tinkham she d/o Jeremiah Burrows and ?Hewes.
James of Hingham Ma m 1674 Sarah Church in Bristol, Ma.
This is from Mayflower books
The Adams info is from my Smith family