On the Stephenson side ... the William that came to Canada (1854) .. left one brother .. Henry (who lived at Branton in Cantley Parish .. W Yorkshire). Both Henry and his parents Wm Stephenson and Alice Carter are buried in St Wifrid's Church grave yard (Cantley .. just S.E of Doncaster Yorks) .. And I believe the next generation back, is another William Stephenson a coachmaker of Doncaster, who died in 1806.
