In the 1881 census his birthplace is Sutton on Trent. Does he appear in any other censuses?
Possibly in 1861 in Normanton, household of George Templeman, blacksmith: John Wadkin, 17, apprentice, born Sutton, Notts.
Could this be John - registered with French spelling, Jean? Born in Barentin, Seine-Maritime, France on 20 March 1844. Mother's maiden name, Wilbour.https://www.archivesdepartementales76.net/ark:/50278/19780039261c962a9da326d17da739eb /dao/0/29Entry 53 at bottom right of page.