s the Civil War progressed into its up scaled battles, feeding more men into the teeth of hell, both governments sought more real estate to establish their prisoners of war. A federal prison camp for Confederates was built on Point Lookout, Maryland, at the extreme tip of St. Mary's County, on the barren peninsula where the Potomac River joins Chesapeake Bay. The camp was convenient to the battlefields in the East and therefore became the largest Union prison.
The War Between the States was almost over when Colonel A.J. Johnson sent $150.00 to A. Clay Peak, a Confederate soldier housed in Barrack 77 at Rock Island Prison in Illinois. Peak could purchase goods at the sutler using these funds, held by the Federal army.