Their sound, and their broad repertoire of traditional folk material and topical songs inspired other groups such as the Kingston Trio, the Chad Mitchell Trio, The New Christy Minstrels, and the "collegiate folk" groups such as The Brothers Four, The Four Freshmen, The Four Preps, and The Highwaymen.
Jų muzika, didelis repertuaras su tradicine folk medžiaga ir dainos aktualiomis temomis įkvėpė kitas grupes, tokias kaip The Kingston trio, The Chad Mitchell Trio, New Christy Minstrels, ir „koledžų folk“ grupes kaip The Brothers Four, The Four Freshmen, The Four Prepps, The Highwaymen.