Hi I saw your posting and wondered if we are researching the same line of Exelbys. My Exelbys start with Richard Exelby, born about 1728; place unknown, died 1806 in Copmanthorpe, married Jane Dunell Jan 29 1760 in Stillingfleet. This line carries through to my mother, Allura Exleby.
In 1837 George Exelby came to the United States and settled in Britton, Michigan. I know that about the same time, some of the Exelbys went to Australia. I have never been able to take this line back any further than Richard 1728. Do you have Richard in your database? Most of this Exelby line settled in Copmanthorpe, just outside of Yorkshire. Any of these names sound familiar?