Hi Dianne.
Although I have been researching the family tree for two years now, this is the first time I have used RootsChat, so I may have the procedures completely wrong, but here goes.
I notice that you have the family name Mumby, listed in your trees. My connection is through Rebecca Mumby. She married William Dawson, and they had a daughter Maria Dawson (28.7.1820).
Maria Dawson married my relative, Mark William Edwards,(1822), in 1844 at the Parish Church in Horncastle.
I have a complete history from then, up to the present day, of the Edwards line, but I have not been able to get any further back than Mark's Father ,Thomas ( 1797).
I have been to the County Archives in Lincoln, but found nothing of direct value.
Any information that you may have on the Mumby's might give me a clue. I am happy to share with you what I have, if that is of any value.
Kind regards. Mike.