[1][2][3] The classic line-up from 1960 to 1964 consisted of co-founders Charlie Waller on guitar and John Duffey on mandolin, with Eddie Adcock on banjo and Tom Gray on bass.

After a few early changes, the band settled into a somewhat permanent lineup consisting of Waller, Duffey, Eddie Adcock on banjo, and Tom Gray on bass.

[8] In the band's later years Charlie Waller served as the group's "focal point and leader" until his death in August 2004.

Several of the band's songs ("Two Little Boys," "Bringing Mary Home," "New Freedom Bell," "Matterhorn," "Fox on the Run," "Legend of the Rebel Soldier," and many others) have become bluegrass standards.

[citation needed] Some of the immediate offshoots of the band were Emerson & Waldron, the Seldom Scene, II Generation, and Doyle Lawson & Quicksilver.