Sue,
Many thanks for that information on William Thomas and May Corlett - I'll follow it up.
Would anyone be able to check the 1861 or 1871 Census's, probably Ramsey area, looking for Hannah Corlett b.1859/60?
It is possible that her parents were John b.1819?, Lezayre, and Jane b.1826?, in Ramsey - but this could be a wild goose chase.
Here's hoping,
Ian