Good Day
A likely candidate for father of Mary Oxby 1793 seems to be Thomas Oxby b 1754 Wellingore. He married Ann Johnson in 1779 at New Sleaford.
My Family Tree Maker file traces Mary Oxby back further to Thomas Oxby b 1668 Canwick.
If anyone would like to swap info on descendants of Thomas 1668 (which include me) I am
buddarian@hotmail.co.uk John Taylor
Sandy, Bedfordshire, England