Preheat oven to 325* and grease a medium baking dish.
In a medium mixing bowl, mix together beans, brown sugar, dry mustard, and ketchup. Pour into baking dish.
Place bacon pieces on top of beans.
Bake in 325 oven for 2 1/2 hours uncovered. (You may want to place baking dish on a sheet pan to catch possible drippings). ENJOY!
NOTE: this recipe can be doubled to feed more, if necessary