Lucy M. Hall-Brown (née , Hall; November 1843 – August 1, 1907) was an American physician and writer. She was a general practitioner and keen on education. In 1876, she entered the University of Michigan for a medical course. Upon graduation in 1878, she served for six months as assistant physician under Dr. Eliza Maria Mosher at the Massachusetts Reformatory Prison for Women. She then pursued post-graduate work in New York City and London, being the first woman admitted to clinics in St Thomas' Hospital, London. Later, she became intern at the Royal Lying-in and Gynecological Hospital of Prof. Franz von Winckel in Dresden. Upon her arrival in Dresden, she knew scarcely any German, but after a month's study, she had acquired sufficient knowledge to warrant Dr. Winckel in admitting her to h