. . "1996Z"^^ . "John Duffey"@en . "American bluegrass musician" . "1934-03-04Z"^^ . . "1996-12-10Z"^^ . "John Humbird Duffey, Jr."@en . . . . . . "1996Z"^^ . . . "John Humbird Duffey, Jr. (March 4, 1934 \u2013 December 10, 1996) was a Washington D.C. based bluegrass musician.Duffey was born in Washington, D.C., and lived nearly all his life in the Washington D.C. area. He graduated from Bethesda-Chevy Chase High School in suburban Maryland. Duffy learned to play the mandolin, dobro, and guitar, in addition to his tenor singing voice."@en . "1934Z"^^ . "1957Z"^^ . "solo_singer" . . . "Duffey, John H."@en . . . . . . . . . .