John married Martha Unknown. Martha was born in Unknown; died after 1815. [Group Sheet]

1. Mary Cosier was born about 1815 in Thame, Oxfordshire, England; was christened on 13 Sep 1815 in St. Mary the Virgin, Thame, Oxfordshire, England; died between 1 Jul 1908 and 30 Sep 1908 in Lewknor, Oxfordshire, England; was buried on 6 Aug 1908 in St. Margaret's, Lewknor, Oxfordshire, England.