Johnson’s Island is located on Ohio’s Marblehead peninsula in the Sandusky Bay. In the early 1860s, the U.S. Army leased the land to set up a Prisoner of War Depot for prisoners captured during the Civil War. Over the roughly three years of operation, more than 15,000 prisoners were held there. Most of the island is a residential community today, but the cemetery is open to the public, in which an estimated 209 soldiers are buried (this is one of the tombstones).. The Johnson’s Island Confederate Cemetery was named a National Historic Landmark in 1990.