Henry Cabot Lodge, Ph.D. (History, Harvard University, 1876; M.A., Harvard; LLB, Harvard, 1874; B.A., Harvard College, 1972) was a historian and biographer who was elected U.S. Senator for Massachusetts on the Republican ticket six times, where he served as the first de facto Senate Majority Leader, a position first formally held by his immediate successor, Charles Curtis.
Lodge served on the Board of Regents of the Smithsonian Institution. He held the Chair of the Senate Foreign Relations Committee from 1919 until his death, and his staunch opposition to Woodrow Wilson's Treaty of Versailles ensured that the United States never joined the League of Nations and influenced the structure of the later United Nations, to which his grandson, Henry Cabot Lodge Jr., served as U.S. Ambassador, 1953–60.