He died on February 20 , 1960 , with Eric Sawyer surviving him until 1985 .
In 1956 , Dierks ' leg was amputated following an illness .
Dierks died on February 20 , 1960 , with Eric Sawyer surviving Dierks until 1985 .
In 1956 , Dierks ' leg was amputated following an illness .