Signed by Indian Agent D.H. Cooper--Tandy Walker--Sampson Folsom--Winchester Colbert--and others.
Can be used as a marker to show direction,appox travel-as its a fixed point.
Mannal labor school for boys at one time who helped make bricks,and build the school
It maybe old timers give the name the Rock,as they knew of few places build of stone/brick
in that era.