Bourbon Whiskey/ Jacob Spears. Named after Bourbon Co. because of quantity and quality of whiskey produced within its borders. Made from a fermented mash of at least 51% corn, with less wheat, rye, or barley, yeast and limestone water. Distilled at no more than 160 proof and aged in charred oak barrels. In 1964, Congress recognized bourbon as a distinctly American product. (Reverse) Stone Castle, 1 mile south, built 1790 by Thomas Metcalfe for Jacob Spears. A Pennsylvanian who settled in Paris, he was innovative farmer & one of first distillers of bourbon whiskey. Still standing on this farm are a springhouse and a storehouse for his bourbon whiskey. It is the most complete distiller’s complex still in existence today.