Richard Pengelly (1818-1898) was born in Tavistock, England, and died in Kalamazoo, Michigan. He left England for America in 1835. Pengelly trained for the ministry in the Methodist Church in Norwalk, Ohio, and served as a preacher in Ohio and Michigan after being ordained in 1840. He was made a deacon by Bishop Hamline at Coldwater, Mighigan, in 1844, and an elder by Bishop Janes at Marshall, Michigan, in 1846. Pengelly married Mary Elizabeth House in Van Buren, Michigan, in 1847. In 1863, he graduated with an M.D. in Homeopathic Medicine from Hahnemann Medical College in Chicago, Illinois. He served as a minister and a medical doctor in a number of localities, settling in Kalamazoo, Michigan, for the latter part of his career until his death. He was known for his tonic, Zoa-phora, used "for all forms of female weakness," and also for his pamphlet, Dr. Pengelly's Advice to Women. There is no record of Pengelly studying with Eddy or joining The First Church of Christ, Scientist, in Boston, Massachusetts.

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