Metropolitan Quartet

Shannon Four

The Criterion Quartet

Trinity Choir

Henry Burr

Steve Porter

Chautauqua Preachers' Quartette

Lyric Quartet

George Alexander

Harry Macdonough

Royal Dadmun

Haydn Quartet

John McCormack

Julia Culp

Fisk University Male Quartette

Collegiate Choir

Frederick Wheeler

Virginia Asher

James Jordan

Frederic C. Freemantel

Wiseman Sextette

Columbia Stellar Quartette

Reinald Werrenrath

Thomas Chalmers

Homer Rodeheaver