Larry Ostola speaks with Anton Wagner about his book, The Spiritualist Prime Minister: Volume 1: Mackenzie King and the New Revelation, along with the author of the foreword, Walter Meyer zu Erpen. The Spiritualist Prime Minister by Anton Wagner is a groundbreaking two-volume biography that reveals the deep influence of Spiritualism and the occult on William Lyon Mackenzie King, Canada’s longest-serving Prime Minister. Based on ten years of meticulous research, Wagner documents over 130 of King’s interactions with mediums, psychics, and other spiritual practitioners. King’s primary motivation was to communicate with his deceased mother and close associates, often consulting spiritualists during pivotal moments in his political career, including the Great Depression and World War II. The biography situates King’s beliefs within the broader international context of early 20th-century Spiritualism, referencing figures like Arthur Conan Doyle. Wagner’s work offers a detailed psychological portrait of King, exploring both his mystical pursuits and controversial views, including instances of racism and antisemitism. Richly illustrated and thoroughly researched, this biography provides new insights into the private life and decision-making of one of Canada’s most influential leaders. Anton Wagner is a founding executive member of the Canadian Association for Theatre Research, editor of ten books on Canadian theatre, and an accomplished researcher, writer, and documentary filmmaker. Walter Meyer zu Erpen is president and archivist of the Survival Research Institute of Canada. If you like our work, please consider supporting it: bit.ly/support_WTY. Your support contributes to the Champlain Society’s mission of opening new windows to directly explore and experience Canada’s past.