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Female Abigail Adams Click to view Abigail Adams in the family tree

Abigail was born in 1684.1   Abigail's father was Joseph Adams and her mother was Mary Chapin.  Her paternal grandparents were Joseph Adams and Abigail Baxter. She had a sister named Mary. She had six half-brothers and three half-sisters, named Joseph, Josiah, Ebenezer, Samuel, John, Joseph, Ruth, Bethia and Hannah.1 

1 phelps.FTW @ Tree #1353
Further sources/citations:
World Family Tree Vol. 4, Ed. 1 @ Tree #0574, 0574.ftw