Abigail Adams was the wife and closest advisor of John Adams, as well as the mother of John Quincy Adams. She is sometimes considered to have been a Founder of the United States, and is now designated as the first Second Lady and second First Lady of the United States, although these titles were not used at the time.
Being born in '44, she would've been approximately 9-10 years old when she met the Riddles in '54.
When Berby fast-forwards time, they meet her again at an unspecified moment during the Civil War, which occurred between '61 and '65, when Abby would've been somewhere between ~16-21 years old.
Abigail Smith was her birth name, and her surname did not change to Adams until 25 October 1864 when she married John Adams at nineteen years old: a month prior to her 20th birthday.
Abigail mentions "my friend John" to the Riddles in 1754, which some might assume to be her future husband, however Abigail did not historically meet John until 1759 when she was fifteen years old: through John's friend Richard Cranch who was engaged to Abigail's older sister Mary Smith.
Abigail has fair skin, and brown hair in a ponytail held by a blue ribbon. She wears a white pearl necklace, and her dress is blue. She wears blue high heels.
Her VA, Ana Araujo, was nominated for a Nova Star Award for her performance as Abigail, and later won.