Historical Marker
William W. Harllee
Historical marker location:
5314 Old River Road, Florence, South Carolina
( Marker is on Old River Road (County Route 57) 0.2 miles east of Francis Marion Road, on the right when traveling north.)
Marker installed: 1990
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.