Benjamin Harrison (August 20, 1833 – March 13, 1901) was an American politician and lawyer who served as the 23rd president of the United States from 1889 to 1893. He was a grandson of the ninth president, William Henry Harrison, creating the only grandfather–grandson duo to have held the office. He was also a great-grandson of Benjamin Harrison V, a founding father who signed the United States Declaration of Independence. Harrison transferred to Miami University in Oxford, Ohio, in 1850, and graduated in 1852. He joined the Phi Delta Theta fraternity, which he used as a network for much of his life. He was also a member of Delta Chi, a law fraternity that permitted dual membership. Classmates included John Alexander Anderson, who became a six-term U.S. congressman, and Whitelaw Reid, Harrison's vice presidential running mate in 1892. At Miami, Harrison was strongly influenced by history and political economy professor Robert Hamilton Bishop. He also joined a Presbyterian church at college and, like his mother, became a lifelong Presbyterian.