Hi

Not a lot of help, but
Did you notice that the IGI has 2 entries for Mary Heckler's marriage to John Dean, one is a submitted entry with a year of 1795 and the other is an extracted record with a year of 1792.
Perhaps Mary was christened in a non-conformist chapel/church, unfortunately not all of those type of records have survived
The 1841 census shows 61 people called Heckler in the whole of England, 35 of which where resident in Yorkshire, but none of them are living in the Patrington area.
Bee

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