Willem Mengelberg (1871-1951)
Gedenkboek 1895-1920. 's Gravenhage, Martinus Nijhoff, 1920. xiv, 290 pp. With extensive dedication drenched in affection by Mengelberg to Greta Wiesler on the title page.
Wiesler was married to Johan Luger, who in 1940 wrote in De Telegraaf on Mengelberg's stay abroad "Willem, keer terug! De Amsterdammers, en geheel luisterend Nederland, wachten op Willem Mengelberg."