<P> Frank Bank ( April 12 , 1942 -- April 13 , 2013 ) was an American actor , particularly known for his role as Clarence `` Lumpy '' Rutherford on the 1957 -- 1963 situation comedy television series Leave It to Beaver . </P>
<P> Frank Bank ( April 12 , 1942 -- April 13 , 2013 ) was an American actor , particularly known for his role as Clarence `` Lumpy '' Rutherford on the 1957 -- 1963 situation comedy television series Leave It to Beaver . </P>
who played lumpy in leave it to beaver
who played lumpy in leave it to beaver
Frank Bank
Frank Bank