This county was named for Commodore Thomas McDonough, who commanded the fleet on Lake Champlain in a successful battle with the British near Plattsburg in 1814. This link shows a picture of Thomas McDonough.
             Towns in McDonough county include: Bardolph, Blandinsville, Bushnell, Colchester, Good Hope, Industry, Macomb, Plymouth, Prairie City, Scoita, and Tennessee.
             The county seat for McDonough is Macomb. Its also the home of Western Illinois University. Macomb is sort of a university town.