Henlisted at Hennepin, Putnam County, Illinois, to fight in the Black Hawk war. He was a 2nd Lieutenant in Captain William Haws Company. This confrontation with the Sauk (Sac) and Fox Indians, led by Chief Black Hawk, lasted only a few months in the summer of 1832, at Hennepin, Illinois. We find a record of his [William Morgan Hart's] service at the National Archives in Washington, D.C. Included in the file is an application dated 1855 in Mercer County, Missouri, which shows William Morgan Hart applying for the Bounty Land to which he may be entitled under a recent Act of Congress, based on his service in the Black Hawk War. He was issued a Warrant #80817 for 160 acres of land. The records do not show where this land might have been located, and we know nothing more of the disposition of the Warrant or the 160 acres of land. A more complete background of this War in Illinois is found in the section of this book on the Peter and Hannah Poe Hart family.