The Kaiser Wilhelm Institute's eugenics studies were initially endowed by Gustav Krupp von Bohlen und Halbach, the head of the Krupp munitions monolith, and James Loeb, of the Kuhn-Loeb banking family. Loeb's relatives, the Warburgs, were banking partners of William Rockefeller, and both families were responsible for setting up the American Harriman family - also movers and shakers in eugenics - in business.