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Boies Penrose (born Nov. 1, 1860, Philadelphia, Pa., U.S.—died Dec. 31, 1921, Washington, D.C.) was an American legislator and longtime party boss of Pennsylvania. He served as U.S. senator from Pennsylvania from 1897 to 1921. Penrose was a member of a socially prominent Philadelphia family. He graduated from Harvard University in 1881 and was admitted to the Pennsylvania bar in 1883. Penrose began to practice law in Philadelphia and soon became interested in government and...