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American tennis player and Republican politician Dwight F. Davis (1879 - 1945), circa 1920. Davis founded the Davis Cup international tennis competition in 1900 and was United States Assistant Secretary of War from 1923 to 1925. (Photo by Popperfoto/Getty Images)

American tennis player and Republican politician Dwight F. Davis (1879 - 1945), circa 1920. Davis founded the Davis Cup international tennis competition in 1900 and was United States Assistant Secretary of War from 1923 to 1925. (Photo by Popperfoto/Getty Images)