As the travelers of the Oregon trail, Mormon trail , and the pony express passed by
Register cliff Wyoming they would carve their names into the soft sandstone .
(Alvah) A.H. Unthank passed by here in 1850 .
He died at age nineteen a week later from cholera and his headstone is five miles down the road in Glenrock Wyoming.
Oliver Unthank was Alvah's cousin and Oliver Jr. signed beneath his father.