Willem Mengelberg
- Filmography noting use of his works in cinema and his own on-screen appearances from the Internet Movie Database.
- http://www.imdb.com/name/nm0579572/

Mengelberg, Willem Josef
- Brief biography noting studies, leadership of the Amsterdam Concertgebouw, disfavor over Nazi collaboration, and others in his musical family from the Grove Concise Dictionary of Music entry at WQXR radio.
- http://www.wqxr.com/cgi-bin/iowa/cla/learning/grove.html?record=5950