Have you tried Carol Yarborough's website on the Sandefurs and the various spellings. It is called Standerfer Etc Research Site - a wonderful genealogy website!Also, there is a book by James Odus Sandefur called Sandefur - From Virginia to Kentucky and Onward - 1658-1996 - 340 Years in America Vol. l.The only bad thing about the book is that it is not indexed.I glanced through the book last night to see if I could find something for you.As soon as this Vol. l is sold out, they will come out with Vol. 2 regarding Bennett and Judith Sandefur of Henderson County KY and their descendants.
Are you by any chance the Donna Bell from Rogers, AR?If you are, I know you.
I will go through James Odus's book more carefully, but due to the dates you are looking for I would imagine it is more likely in the second volume.