On 26 Feb 1761 when Knight was 20, he first married 
Lucy Sprague (49309) , daughter of 
John Sprague (43491) (1 Mar 1719/20-1 Apr 1801) & 
Margaret Webb (32289) (5 Sep 1723-23 Apr 1796), in Hingham, MA.
45 Born on 10 Apr 1743 in Hingham, MA.45 Lucy died in Hingham, MA, on 11 Apr 1766; she was 23.45
Knight and Lucy were first cousins; their fathers were brothers.