Samuel M. Vauclain

Samuel Matthews Vauclain (May 18, 1856 – February 4, 1940) was an American engineer, inventor of the Vauclain compound locomotive, and president of the Baldwin Locomotive Works. He was awarded the John Scott Award and the Elliott Cresson Medal by The Franklin Institute in 1891. He was also awarded the Distinguished Service Medal for arming the United States Army during World War I. He was elected to the American Philosophical Society in 1899. Provided by Wikipedia