Yes he is the same relation. The persons you listed are my great great grandfather, great grandmother and great grandfather.
I have quite a bit of information on William Pete Lindley. However, not much information on Sara Byers. She is hard to locate records for.
How are you related to us? We are cousins somehow. :)
Here is the link to my tree with the information that I have.http://trees.ancestry.com/tree/1513022/person/-1928797603?pg...