John married Mary Nicholas on 28 Nov 1780 in Perranzabuloe, Cornwall, England. Mary was born about 1756 in Constantine, Cornwall, England; was christened on 29 Jun 1756 in Constantine, Cornwall, England; died on 13 Apr 1852 in Truro, Cornwall, England; was buried on 17 Apr 1852 in St. Mary's, Truro, Cornwall, England. [Group Sheet]