Pilot Knob is also the name of a nearby knob , or , prominent hill .
A post office was established at Pilot Knob in 1850 , and remained in operation until it was discontinued in 1955 .
Pilot Knob is also the Pilot Knob of a nearby knob , or , prominent hill .
A post office was established at Pilot Knob in 1850 , and remained in operation until it was discontinued in 1955 .