John Bradley Catmull was born 6 Jul 1827, in Toseland, Huntingdonshire, England, son of William Catmull and Mary Ann Bradley.
Susan Arbon was born 30 May 1831 in Graveley, Cambridgeshire, England, the daughter of James Arbon and Elizabeth Newman. They married 13 Oct 1851 when he was 24 and she was 20. They were the parents of eight children, ages 7 to 23, including two married daughters, including Mary (Polly), when they were baptized. Susan was baptized first on 16 Apr 1876, at the age of 44. Her daughter Mary (Polly) was baptized at the same time. Husband John was baptized four months later, on 20 Aug 1876, at the age of 49.