Harry S. Truman

Harry S. Truman (May 8, 1884 - December 26, 1972) was a human from who lived during on Earth during the 19th and 20th centuries on Earth. Truman served as President of the United States from 1945 to 1953, first assuming office when Franklin D. Roosevelt died in office, and later winning election as President.

In 1947, a Ferengi ship carrying Quark, Rom, Nog, and Odo - who had hidden on board the ship to catch Quark in the act of smuggling kemocite - crashed in the desert near Roswell, New Mexico after accidently traveling 400 years back into the past. Truman was kept apprised of the situation by the Army. (DS9 episode Little Green Men)