found: Widner, E. The Oak Ridge Boys, 1987: galley (originally a gospel music group known as the Oak Ridge Quartet [no publs. in LC]; evolved into the Oak Ridge Boys, a country music group)
found: Master showmen of song, 196-?: label (the Oak Ridge Quartet)
found: New York times, Aug. 3, 2003 (Marshall Lon Freeman, 82, gospel singer; d. July 30, 2003, Rocky Face, Ga.; the last surviving member of the Oak Ridge Quartet, which became the gospel-singing Oak Ridge Boys)
found: Hymns of gold. Vol. 1, 1991: container (Oakridge Boys)