He was the author of "Challenge of the Unknown: Exploring the Psychic World", with an introduction by Waldemar Kaempffert, which was published by Allen and Unwin, in the USA in 1947 by Current Books, and in Great Britain in 1952 by Henderson and Spalding.
This devotion to objectivity, however, led to disputes with the board of directors, especially around the appointment of George Ranney, who was also a director of International Harvester.
Waldemar, Margrave of Brandenburg-Stendal | Waldemar Rezmer | Waldemar Haffkine | Waldemar | Waldemar Kaempffert | Waldemar Bonsels | Shirley Waldemar Baker | Prince Waldemar of Schaumburg-Lippe | Major Waldemar Fydrych |