How are John Adams Jr. and Abigail Smith Adams third cousins?

I've been researching but I can't find any sort of connection between them.

Apparently, the definition of third cousin is the child of your second cousin, who is your parent's cousin.

Does anyone know how John Adams and his wife, Abigail Adams are third cousins?

Thanks in advance

3 Answers

  • 8 years ago
    Favorite Answer

    Thomas BOYLSTON b: 1615 d: 4 Oct 1653

    had at least two children,

    Thomas BOYLSTON b: 26 Jan 1644 d: 16 Dec 1695 & Sarah BOYLSTON b: 30 Sep 1642 d: 8 Aug 1711

    who were siblings. Thomas & Sarah had children

    Peter BOYLSTON b: 1673 d: 10 Sep 1743 & William SMITH b: 24 Mar 1666 d: 3 Jun 1730

    who were 1st cousins.

    Peter and William had children

    Susanna BOYLSTON b: 5 Mar 1708 d: 17 Apr 1797 & Rev. William SMITH b: 29 Jan 1706 d: 17 Sep 1783

    who were 2nd cousins

    Susanna and William had children

    John ADAMS b: 30 October 1735 d: 4 Jul 1826 & Abigail SMITH b: 11 Nov 1744 d: 28 Oct 1818

    who were third cousins.


    You only had two things wrong.

    1) John Adams SENIOR married his third cousin, Abagail Smith.

    2) Your 2nd cousins are the CHILDREN of your parents' first cousins.

    Your parents' first cousins are your first cousins once removed.

    Your third cousins are the children of your parents' second cousins.

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  • 3 years ago

    Abigail Adams Definition

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  • 8 years ago

    You are confused. Third cousins have one set of great great grandparents in common, as their closest common ancestors.

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