Adolf Hitler | Adolf Eichmann | Georg Büchner | Emil Adolf von Behring | Adolf Schwarz | Adolf Hurwitz | Georg Büchner Prize | Adolf von Harnack | Adolf Seilacher | Adolf Loos | Adolf | Gustaf VI Adolf of Sweden | Eduard Buchner | Adolf Galland | Adolf Anderssen | Petter Adolf Karsten | Hans Adolf Krebs | Gustav IV Adolf of Sweden | Gustav Adolf Grammar School | Adolf Muschg | Adolf Klose | Adolf Just | Adolf Jellinek | Adolf Erik Nordenskiöld | Adolf, Duke of Holstein-Gottorp | Adolf Bernhard Marx | Richard Adolf Zsigmondy | Ludwig Büchner | Ludwig Buchner | King Gustav Adolf's Gymnasium |
Upon finishing school in 1902, Niel completed his apprenticeship with the Genthin choirmaster Adolf Büchner.