On 12 Jul 1753 when Oliver was 31, he married
Mary Fowler, daughter of
John Fowler (3 Aug 1708-ca 1771) &
Dorothy (-10 Mar 1750), in Coventry, CT.
Born 9 Jan 1735/6 in Coventry, CT. Mary died in Sandisfield, Berkshire County, Massachusetts on 13 Jan 1773.