At first T.G. and Lillian's investigations into the paranormal were held in secret. But T.G. went public in 1926, delivering a lecture on his research on telekinesis to the Winnipeg Medical Society. From that time until his death, Hamilton delivered eighty-six lectures and wrote numerous articles published in Canada and abroad. His fame spread and the Hamilton family's work became known in the United Kingdom, Europe and the United States. Canadian Prime Minister William Lyon Mackenzie King and Americans Mina Crandon, the medium known as “Margery,” and her husband L.R.G. Crandon, all travelled to Winnipeg to participate in the Hamiltons’ séances. Among those who worked with Dr Hamilton were Ada Turner and her adopted son Harold Turner.