On 1 Mar 1798 when Amos was 25, he married Rebecca Diamond in Londonderry, Rockingham County, New Hampshire. Born on 26 Feb 1775 in New Hampshire. Rebecca died in Goffstown, Hillsborough County, New Hampshire, on 18 Oct 1862; she was 87.

Rebecca, daughter of Ephraim and Joanna (Shaw) Diamond, also spelled Dimond.