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In page Spiritualism (movement):

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A number of scientists who investigated the phenomenon also became converts. They included chemist and physicist William Crookes (1832–1919),[citation needed] evolutionary biologist Alfred Russel Wallace (1823–1913)[8] and physicist Sir Oliver Lodge.[citation needed] Nobel laureate Pierre Curie was impressed by the mediumistic performances of Eusapia Palladino and advocated their scientific study.[9] Other prominent adherents included journalist and pacifist William T. Stead (1849–1912)[10] and physician and author Arthur Conan Doyle (1859–1930).[6]