Old Fort Jackson in Savannah, Ga., is now on public display, the culmination of an extensive archaeological and conservation effort.
A contractor
dredging the Savannah River in 2021 came across the first of the 19 artillery pieces,
which some thought might belong to CSS Georgia, a Confederate ironclad that was
scuttled nearby by its crew in December 1864.
But it soon became apparent they dated to the American Revolution and the British siege of
the city in 1779. They were on ships scuttled by the British to prevent French
support of the colonists.
The surprise discovery
of the Revolutionary War weapons came following the 2015-2017 recovery of items
associated with the Civil War ironclad. That U.S. Army Corps of Engineers
harbor deepening project, which
involved contractors and U.S. Navy divers, recovered more than 30,000 CSS Georgia artifacts, including
241 pieces of ordnance, five cannons and two large casemate sections. The
latter were documented and left in the water.
The Corps of
Engineers worked with Texas A&M University to conserve the CSS Georgia
material and then 17 of the cannons associated with the Revolutionary War. The
Savannah History Museum this week opened “Loyalists and Liberty: Savannah in the American Revolution.”
A section of the CSS Georgia's casemate in 2017 (U.S. Army Corps of Engineers)
Chris Dostal, director of the conservation lab at Texas
A&M, told the Civil War Picket:
“From a
conservation standpoint, both projects involved large, concreted iron artillery
from a marine or riverine environment, but the Savannah River cannon presented
a particularly unusual opportunity because so many guns were recovered
together, several with associated bore contents preserved.”
Some CSS Georgia artifacts are on display at the National Civil War Naval Museum in Columbus, Ga. (At left, one of its propellers, Picket photo)
The Picket recently asked officials to provide some context to how both archaeological projects dovetailed or differed.
The following responses came from Francis “Franky” Stankiewicz with Chronical Heritage, Andrea Farmer, archaeologist with the Savannah district of the Army Corps, and Cheri Pritchard, media relations chief with that office. The responses have been edited for brevity and context.
Q1: Are you any closer to knowing
precisely which British ships these Revolutionary War cannon belonged
to? I know the HMS Rose was ruled out.
A: We have learned a great deal since the cannon were conserved, but I would not say we can assign individual guns to specific vessels with certainty. The strongest current interpretation is that the assemblage most likely originated from the armed ship Savannah, formerly the American privateer General Arnold, and the British transport Venus, both of which were associated with the 1779 Siege of Savannah. Current research suggests that domestic colonial production is the most likely origin for the guns attributed to the General Arnold/Savannah. However, manufacture in Britain, France (particularly Bordeaux), or Spain (particularly Bilbao) cannot be ruled out. Within the realm of domestic production, Rhode Island and Pennsylvania presently appear to be the most probable manufacturing centers.
Q: There was early speculation these
19 cannons might date to the Revolutionary War era but might have been placed
on the CSS Georgia or fortifications. What led you to determine they dated to
the Revolution?
Andrea Farmer with two reenactors at the Savannah History Museum (USACE photos)
A: The Revolutionary War interpretation rests on several
lines of evidence. Typologically, the guns are mid-to-late 18th-century
6-pounders, including examples exhibiting Armstrong-pattern characteristics as
well as related short-gun variants. Historically, British and
French accounts document the burning and scuttling of armed vessels in this
section of the Savannah River during the 1779 Siege of Savannah, consistent
with the location of the recovery area. Archaeologically, many of the cannon
were recovered in a loaded condition, containing tampions, wadding, shot,
powder cartridges, fuse remains, and powder residue, indicating that they were
likely prepared for immediate use rather than discarded at a later date.
Taken together, the age, location, and loaded condition of the guns strongly
support their association with the Revolutionary War-era scuttling events in
the Savannah River.
Q: From an archaeological and conservation viewpoint, how different are these cannons vs. those found at CSS Georgia site?
A: From a conservation standpoint, these cannons were
unusually rich in sealed contexts. Most were heavily concreted and contaminated
cast iron, but many still held preserved bore contents. That meant conservation
was also excavation: tampions, hemp junk wads, shot, cartridges, and residues
had to be removed and documented in sequence. CSS Georgia material, by
contrast, is Civil War ironclad wreckage and ordnance context: later, more
industrial, and tied to an armored floating battery. The Savannah cannon
assemblage is earlier, Revolutionary War-era muzzle-loading artillery, and its
research value comes heavily from the combination of gun form, loading evidence
(i.e., material within), and scuttling context. (See link for more photos)
Q. I know the investigation into CSS
Georgia concluded a few years back. Have you learned anything more about the
site or vessel since then?
A: The CSS Georgia investigation itself concluded earlier,
and the current investigations do not indicate a major new interpretation of
the vessel since that work. What they do add is a broader landscape context:
the cannon cluster site lies near, but is not part of, the CSS Georgia site,
and prior mapping work around CSS Georgia actually helped identify
the Revolutionary War cannon concentration.
Q: Do you have a schematic/map or illustration showing their precise location in the Savannah River? And do you have anything similar showing the CSS Georgia cannon location -- or both put together?
A: To help preserve and protect these cultural resources long-term, we are not publicly disclosing their precise locations. While the locations are known to a limited number of researchers and resource managers, there is broad agreement that this information should remain restricted for now. Limiting access helps protect the sites from disturbance while supporting future research and analysis that may provide additional insights. Researchers continue to use a variety of mapping products, including sonar and multi-beam imagery of the Cannon Cluster Site near Fort Jackson. Specific details about the exact locations of these resources and their relationship to one another are also being withheld to support ongoing stewardship and future study. In addition, the Savannah Harbor shipping channel is heavily trafficked by large commercial vessels. Restricting site locations helps discourage unauthorized diving activity and reduces potential safety risks. (At left, anchor from one of the 18th century vessels, USACE)
Q: Finally, what is your long-term
perspective on both CSS Georgia and these 19 cannons -- What do they tell us
about their chapters in American history?
A: Although separated by nearly a century, CSS Georgia and
the Revolutionary War cannon cluster represent two distinct chapters in
Savannah's long history as a strategically important river port. CSS Georgia
represents the Civil War effort to hold the river with improvised Confederate
naval technology, including an ironclad that functioned more as a floating
battery than an effective maneuvering warship. The cannon cluster reaches back
to the Revolution when British forces deliberately used vessels and their
armament to obstruct the river and help stop the French fleet during the Siege
of Savannah. Together, they show that control of the Savannah River was
repeatedly central to military strategy, commerce and the fate of the city.























