Nick, as well as I can determine from maps, Green cemetery is south of farm to market road 1488 on Joseph Road about halfway between Magnolia and Hempstead.
I'm interested in the cemetery because it has a marker to my ancestor Samuel Kerr Green. Also in the cemetery is a marker for Samuel's brother Benjamin S. Green, and his wife M.M. Green and their children Benjamin S., J.w., Thomas L., and Lucinda C.
If you or anyone reading the thread has ties to this Green family, I'll gladly share my information about them.