William Henry Harrison (February 9, 1773 – April 4, 1841) was an American military officer and politician who served as the ninth president of the United States in 1841. He died of typhoid, pneumonia or paratyphoid fever 31 days into his term (the shortest tenure), becoming the first president to die in office. He was serving in the Army at the time and sold his land to his brother. Harrison was promoted to Captain in May 1797 and resigned from the Army on 1 June 1798. Harrison also allegedly had an additional six children by Dilsia, an enslaved African-American woman. Among these was a grandmother of Walter Francis White. The story is unlikely, however, given Harrison's early departure from the south.