Terry,
I live right in the heart of PA Dutch territory.
If you find yourself in central PA and go into a restaurant where ribs, pulled pork, and other smoked meats are on the menu and you order a barbeque sandwich you will not get what is described in Wikipedia.
However, if you are at a church street fair, or a Little League concession stand, and the hand drawn sign says "beef barbeque sandwich", the sloppy joe type sandwich is what you will get. And you can also get it on your hot dog.
So are there any good pizza joints near Cotter?