J. D. (Jirah Dewey) Buck

Born in 1838 and dying in 1916, J. D. Buck—short for Jirah Dewey Buck—was an American physician who also became known for his writing on Theosophy and related spiritual traditions.

Alongside his medical career, he was active in esoteric and fraternal circles, especially as a Masonic writer and lecturer. His published work often tried to connect science, religion, philosophy, and inner development, which gave him a lasting place among readers interested in late 19th-century occult and metaphysical thought.

Buck is remembered less as a mainstream literary figure than as a thoughtful bridge between professional medicine and spiritual speculation. For listeners drawn to classic Theosophical or mystical nonfiction, his work offers a window into the intellectual and spiritual experiments of his era.