Scott and Cindy
I've chased that gravesite listing of LP and Letha Crabtree in Sebastian Co Arkansas before. The headstone dates for LP are 1836 to 1892. I just can't seem to make the connection to the TN Crabtree's of central Missouri. More likely I think is a connection to the line of Reese Crabtree of Virginia that migrated to that corner in the 1850's.
John R