When John Evans was born on 7 October 1834, in Liverpool, Lancashire, England, United Kingdom, his father, John Evans, was 27 and his mother, Ann Dinwoodey, was 31. He married Mary Ellison on 25 December 1854, in St. Louis, St. Louis, Missouri, United States. They were the parents of at least 6 sons and 3 daughters. He lived in Grappenhall, Cheshire, England, United Kingdom in 1841 and Bountiful, Davis, Utah, United States for about 10 years. He died on 18 September 1879, in Salt Lake City, Salt Lake, Utah, United States, at the age of 44, and was buried in Salt Lake City Cemetery, Salt Lake City, Salt Lake, Utah, United States.
Welsh: derivative of Evan , from Efan, Ifan, medieval forms of Ieuan (from Latin Johannes, the source of English John), dating from c. 1500, with the post-medieval patronymic suffix -s. Welsh Sion was a separate borrowing of English John, and Evan (Ieuan) and Sion developed as independent names.