From your 1871 census page, the Annie Craine age 13 b Malew and the Thomas Craine age 9 b Marown both could be the children of William Craine and Margaret Shimmin who married in Malew 16 May 1857. If I'm right, maybe Margaret Shimmin was a widow when she married William Craine. Or maybe Eliza Crellin was illegitimate ? Needs a lot more digging to resolve.

Jean C