Married in 1841 (under John's name) or 1842 (age 23; under Mary's name)?
First child, Mary, born in 1843
Look for info on marriage record that may lead to clues about birth or 1841 whereabouts (see 1841 John possibility)
In 1851, the household of John (32) and Mary (44) included Mary (8), Sarah (6), and Elizabeth Jane (<1) in Beertown (Beer Ferris), Devon, where he worked as a bargeman.
By 1861, most of John (42) and Mary's (52) children were out on their own. Living with them was daughter Elizabeth (10) and lodger Peter Doidge (82), a widower [born 1779 at Calstock, Cornwall, England]. The family still resided in in Beer Ferris, and John was now captain of a barge at work. On 5 January 1867, John attended the marriage of daughter Sarah Jane Northey in Beer Town. He was employed at this time as a publican
In 1871, John (56) and Mary (66) were empty-nesters in Beer Ferris, housing lodger William Dawe. John was still working as a bargeman.[nb 1]