ジョージ・ロイド
David M. Cummings, Dennis K. McIntire: International who's who in music and musician's directory - (in the classical and light classical fields), Twelfth edition 1990/91, Cambridge, England: International Who's Who in Music, 1991
Lewis Foreman: From Parry to Britten : British music in letters 1900-1945, A chonological anthology including correspondence by ..., London: B.T. Batsford Ltd., 1987, 332 p.
Gösta Morin, Carl-Allan Moberg, Einar Sundström: Sohlmans musiklexikon : nordiskt och allmänt upplagsverk for tonkonst, musikliv och dans, Stockholm: Sohlman Förlag, (1951-)