Keith, My Barnes and Noble carries them in Cape Girardeau in the Missouri History or Local history sections. I've not found them shelved with the Civil War, go figure. I've never found them at a Borders or Books a Million. Hildebrand/Ross is the same way. Typically the local B&N only has 1 copy of each in stock but they must be on an inventory re-order list because they are there more often than not.

Sorry I can't help more and Cape is 120 miles south of St. Louis.

John R