Only one man in history was both the son and father of an American president.
John Scott Harrison (1804-78), born in Vincennes, Ind., was the son of William Henry Harrison, who became the ninth president of the United States in 1841 but served only 31 days before he died of pneumonia.John's son, born at his father's farm in North Bend, Ohio, in 1833, was Benjamin Harrison.
Benjamin served as the 23rd president from 1889 to 1893. Six states were admitted to the union during his administration.