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. After his college graduation in 1852, Harrison studied law with Judge Bellamy Storer of Cincinnati, but before he completed his studies, he returned to Oxford, Ohio, to marry Caroline Scott on October 20, 1853. Caroline's father, a Presbyterian minister, performed the ceremony. The Harrisons had two children, Russell Benjamin Harrison (August 12, 1854 – December 13, 1936) and Mary 'Mamie' Scott Harrison (April 3, 1858 – October 28, 1930).