TreeAlive Map your family tree
← All South Carolina markers

Atomic Bomb Accident at Mars Bluff, March 11, 1958

Atomic Bomb Accident at Mars Bluff, March 11, 1958 is a South Carolina historical marker in Mars Bluff, Florence County, dedicated 2008.

Florence County · dedicated 2008 · E. Marion Hwy. (U.S. Hwy. 301/76) near the Francis Marion University Campus, Mars Bluff, Mars Bluff

Get directions ↗Start a road tripHistorical trails

Front: In 1958, in the midst of the Cold War, the U.S. Air Force accidentally dropped an atomic bomb near here. The unarmed 7,600-lb., 10’8”-long bomb was aboard a B-47E bomber on a training mission headed for England. Its high-explosive trigger detonated on impact, making a crater as large as 35 feet deep and 70 feet wide. Reverse: The bomb landed in the woods behind the asbestos-shingle-sided home of railroad conductor Walter “Bill” Gregg (b. 1921). Gregg, his wife, their three children, and a niece were injured by the concussion, which destroyed the house and outbuildings and did slight damage to buildings within a 5 mile radius.

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

Example

under a mile from where William Gabby lived in the 1760s

what this marker records spans 1777 to 1789, overlapping William Gabby's years here

From one family's 77-marker roster

Upload your family tree and TreeAlive finds the markers near where your own ancestors lived.

See your family's markers

Start with a tree file, a FamilySearch sign in, or a WikiTree ID.

Report a problem with this page

We may pass what you report to the state's marker program. Please don't include personal details.

Marker data: South Carolina Historical Marker Program, SC Department of Archives and History

More markers nearby

Privacy Policy · Accessibility