General John A. Logan was a prominent American military leader and politician during the 19th century. Born on February 9, 1826, in Illinois, he served as a Union general during the American Civil War. Logan was known for his leadership in several key battles, including the Battle of Vicksburg and the Battle of Atlanta. After the war, Logan transitioned into politics, serving as a U.S. Congressman and later as a U.S. Senator from Illinois. He was instrumental in establishing Memorial Day as a national holiday to honor fallen soldiers. Logan passed away on December 26, 1886, leaving a lasting legacy in both military and civic life.