Unity Boyden, b. Aug. 15, 1764 in MA, m. Matthias Armby, of Medfield

Hi, I'm looking for any descendants of Unity and Matthias. Armsby is his last name according to the book "Thomas Boyden and His Descendants" but according to the Walpole, MA vital stats, it shows it as:
Unity and Matthias Armby, int. June 7, 1783
Her parents were Ezekiel and Leah RICHARDSON Boyden of Walpole, MA.
I am descended from Unity's sister Leah.
If anyone has anything different for his last name, I would appreciate hearing from you also. Neither name is included in any of the message boards.
Thank you!