Patrick Calhoun Burial Grounds

Historical marker location:

Abbeville, South Carolina

( Marker is at the intersection of State Highway 72 and Mt. Carmel Road (State Highway 823), on the left when traveling south on State Highway 72.)

Marker installed: 1950

The H.L. Hunley, a Confederate submarine that was the first submarine to sink an enemy warship in combat, was built in South Carolina. The Hunley sank the Union ship USS Housatonic in Charleston Harbor in 1864, but the submarine itself was lost at sea shortly after the attack.