Kris,
I can think of three good places for that book if you desire to have it where many can see it. First would be the GAR Museum in Springfield. They have a website. Next would be the Daughters of Union Veterans of the Civil War. Once more in Springfield and they also have a website. And finally the Illinois National Guard Museum at Camp Lincoln in Springfield. Thay also have a website. Any or all of these places would love to display it and it would be cared for. FC