According to census records, John Evans was born about 1796 in Bridstow, Herefordshire. He is believed to be the son of John Evans and Sarah Husbands, also of Bridstow.
John married Susannah Preece in Whitchurch, Herefordshire on 23 Dec 1824. Nothing more is known of Susannah's family at this time.
John and Susannah had seven known children. At the time of their eldest daughter's baptism in Goodrich in 1825, their residence was given as "Glewston" (Glewstone), Herefordshire. According to Littlebury's Directory and Gazetteer of Herefordshire, 1876-7, "Glewstone is a hamlet partly in Goodrich and partly in Hentland. It is distant about 2 miles N. of Goodrich church, and 3 S.W. of Ross." (source)
Their next child, John, was baptised in Bridstow in 1827, as were daughters Ann, Caroline, Martha, Rebecca, and son Thomas. There may have been at least one other son by the name of George Henry; he was baptised in 1841 in Bridstow to John and Susan Evans. Mysteriously, there is also another John Evans baptised in 1835 in Bridstow, again to John and Susan Evans. Since neither George Henry or John (1835) appear on any census record, it is not possible to say whether they were part of John and Susannah's substantial brood.
It is believed that John and Susannah passed away at around the same time, in early 1870.