John A. Logan, a Murphysboro native, is known for being a General in the Civil War. (Back in those days he was a "volunteer" in the military which is why the community college mascot is the volunteer.) After the war, he campaigned for VP but didn't win. However, he is most well known for founding Memorial Day.
There are Logan statues in Chicago, DC (Logan circle!), and other places... check out the map:
The museum was well done. Of course it was small, but the displays were modern and informative. There was one employee behind the front desk. When you visit they ask you to sign the guest book. They also have a few souvenir items for sale.