On 29 Mar 1740 when Josiah was 23, he married
Ruth Cooke (38757) , daughter of
Francis Cooke (19389) (ca 1696-4 May 1724) &
Ruth Sylvester (23199) (26 Jun 1701[2]-bef 17 Nov 1779), in Kingston, MA.
Born 4 Feb 1721/2 in Plympton, MA.265 Ruth died in Kingston, MA on 23 May 1790.