 After Shure's departure from the HSQ, Joseph Stepansky joined the Quartet for concert tours.Paul Robyn (1908-1970) Viola; Studied at Juilliard with Joseph Fuchs, Samuel Gardner and Hans Letz; Violist with the Gordon String Quartet (1931-1935); Principal Violist at Warner Brothers; Left the HSQ in 1955; replaced by Alvin Dinkin.Alvin Dinkin (1912-1970) Viola; Studied at Curtis with Louis Bailly; played in St. Louis Symphony and 20th Century Fox Orchestras with Felix Slatkin.