From Wikipedia, the free encyclopedia Frank Bank as Lumpy Rutherford on Leave It to Beaver Born Frank Bank, April 12, 1942 Los Angeles, California, USA Died April 13, 2013 (aged 71) Rancho Mirage, California, USA Occupation Actor (1950–1989) and bond broker (after 1973) Known for Portraying Clarence "Lumpy" Rutherford in Leave It to Beaver, first on CBS and then on 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. Beginning in 1973, Bank became a bond broker in his native Los Angeles, California. His autobiography, Call Me Lumpy: My Leave It To Beaver Days and Other Wild Hollywood Life, was published in 1997. Bank died April 13, 2013, in Rancho Mirage, California, one day after his 71st birthday, from undisclosed causes,clr.