Henry Smith Williams (1863-1943) was a medical doctor, lawyer, and author of a number of books on medicine, history, and science. He started his practice of medicine in 1884. He was Medical Superintendent of the New York Infant Asylum, and the Randall"s Island Hospitals, New York. He wrote A History of Science (1904) with Edward Huntington Williams (1868-1944). His other works include: The Wonder of Science in Modern Life (1912), Miracles of Science (1913) and Practical Radio (1924).