For the Blues Magoos bass player, use Ronnie Gilbert (2)

Ronnie Gilbert (born September 7, 1926, Brooklyn, New York, USA - died June 6, 2015, Mill Valley, California, USA) was an American folk-singer, actor and social activist. Best known as one of the original members of The Weavers with Pete Seeger, Lee Hays, and Fred Hellerman. Died from natural causes, aged 88.