On 6 Sep 1770 when Amasa was 21, he married Mary Nichols (48321) , daughter of Benjamin Nichols (30743) (14 May 1731-Dec 1820) & Elizabeth Prichard (35695) (2 Mar 1726/7-4 Oct 1754), in Waterbury, CT. Born on 16 May 1752 in Waterbury, CT.