"[5] Harrison was a signatory of the Treaty of Greenville (1795), as witness to Wayne, the principal negotiator for the U.S.[12] Under the terms of the treaty, a coalition of Indians ceded a portion of their lands to the federal government, opening two-thirds of Ohio to settlement.[15][16]
At his mother's death in 1793, Harrison inherited a portion of his family's Virginia estate, including approximately 3,000 acres (12 km2) of land and several slaves. He was serving in the Army at the time and sold the land to his brother.[17] Harrison was promoted to captain in May 1797 and resigned from the Army on June 1, 1798.[18]

Marriage and family
Harrison met Anna Tuthill Symmes of North Bend, Ohio in 1795 when he was 22. She was a daughter of Anna Tuthill and Judge John Cleves Symmes, who served as a colonel in the Revolutionary War and as a representative to the Congress of the Confederation.[19] Harrison asked the judge for permission to marry Anna but was refused, so the couple waited until Symmes left on business. 