On 1 Nov 1773 when Oliver was 28, he married Abigail Harris (47040) , daughter of Jonathan Harris (15 Jun 1705-12 Sep 1761) & Rachel Otis (28574) (1 Dec 1713-21 Sep 1761), in Colchester, CT. Born on 22 Dec 1748 in Colchester, CT. Abigail died in Tarrytown, Bradford County, Pennsylvania, on 16 Jul 1837; she was 88.