found: Bach, J.S. Concerto in D minor for violin, oboe, and orchestra, 195-?:label (Willem van den Burg, conductor) container (b. in Holland; came to U.S. in 1925; violoncellist and conductor)
found: Lekeu, G. Quartet in B minor for piano, violin, viola and cello, c1960:label (William Van den Berg, violoncello) container (William Van den Burg; b. The Hague, 1901; violoncellist & conductor, active in the United States)
found: Grieg, E. Sonata in A minor, opus 36, 194-?:label (Willem van den Burg, cello)
found: Internet Cello Society on www, 2001-06-15(William Van den Burg; b. 1901; d. 1992; cellist)
notfound: Holmes, J.L. Conductors on record;Baker's, 5th, 8th eds.;New Grove dict. of Amer. music;Claghorn, C.E. Biog. dict. of Amer. music:Int'l cyclopedia of music & musicians.