07/27/2022
U.S. forces destroyed The Fort at Prospect Bluff 206 years ago today. The end came after a fierce week-long battle during which Garcon and the maroons who defended the fort successfully kept American attackers more than one-mile away from their walls through the use of artillery, Congreve rockets, infantry sortees, and superior tactics.
Many false claims have been made about what caused the terrible explosion that destroyed the citadel of the fort. Alexander Arbuthnot, the Bahamian trader who arrived among the Seminoles one year later, slandered his arch rival William Hambly (former commander of the fort) by suggesting that he was aboard the U.S. gunboats and helped them aim the cannon that fired the fatal shot. This was not true. Historians have insinuated or even outright claimed that the gunners of the fort were poorly trained or incapable of operating the heavy guns that Nicolls left for them when the British withdrew in 1815. Not only is this claim untrue, it also includes more than a small degree of racism.
In truth, the destruction of the Fort at Prospect Bluff - which U.S. authorities called the "Negro Fort" - was one of those almost inexplicable things that sometimes happens in history.
It happened like this....
At 5 a.m. on the morning of July 27, 1816, 206 years ago today, the two small Jeffersonian gunboats assigned to Sailing Master Jairus Loomis began to warp their way upriver from a point about 2-miles below the fort. As Garcon and others at the water battery on the edge of the bluff observed their approach, they opened fire with their heaviest piece of artillery, a 32-pounder. Cannon in the 19th-century were named for the weight of the solid iron cannon balls that they fired. The first shot from the fort missed.
The gunboats were very small, only about twice the length of many of the pleasure and fishing boats that people enjoy on the river today. Each was armed with a single 9-pounder, mounted in the bow. Because these guns were smaller, they could be loaded faster than the heavy 32-pounder and three 24-pounders that constituted the heaviest of the thirteen cannon in the fort. The sailors kept up barrages of fire as they slowly drew closer.
The fort was built in a manner devised by battle-experienced European engineers. It consisted of multiple tiers of defense surrounding an inner citadel that was octagonal in shape. The walls of this octagon were about 18-feet thick and 12 to 15-feet high. Additional cannon were mounted on a gun platform on top of the walls, with castle-like crenelations providing protection for the gunners.
The artillery fight intensified, but the gunners aboard the little ships knew that they stood no chance against the heavier cannon within the fort. Garcon and the artillery crews behind the strong walls of earth and wood were beginning to bracket the vessels and soon would mark their targets and sink them.
At this point, after both gunboats had fired four times, Sailing Master Bassett aboard #154 decided to elevate his 9-pounder to maximum elevation and hurl a shot as high and far as possible. The shot was heated in the boat's copper cooking pot until it was red hot in the hope that it would strike one of the structures around the fort and start a fire. No one either in the fort or on the boats expected what came next.
An eyewitness account of the incident that reached Col. Nicolls not long after indicated that the "hot shot" from Gunboat #154 streaked high over the river from a point about 1 3/4 miles from the fort. As far as all specifications go, it was fired from well beyond the maximum range of a 9-pounder cannon. In a fluke that still cannot be explained, the solid iron ball hit a tree that bent with the force of the impact instead of breaking. The tree - likely a pine - then whipped back, propelling the cannon ball in the direction of the center of the inner citadel of the fort.
When the shot finally struck ground, it did so at the very center of the fort, not far from where the tattered British flag flies today. Contrary to the on-again, off-again claims of some researchers, there was no "blockhouse" here. The citadel was a European-style grand battery, built in an octagonal design but using logs and earth instead of stone. A group of women and children were busy filling bags with cannon powder from buckets at the point where the flaming shot hit. The resulting flash of powder ignited a fire that quickly ran through the open door to the Grand Magazine.
According to the report provided to Col. Nicolls, the flames set off a rack of live howitzer shells just inside the entrance to the magazine. As these exploded, they ignited more than 150 kegs of powder in an explosion so big it could be felt more than 100-miles away in Pensacola.
In the blink of an eye, an estimated 270 men, women, and children were swept from the face of the earth. We will never know the real number. Despite talk to the media about mass graves by some in the U.S. Forest Service, the real truth is that those in the citadel - and that is where most of the people in the fort were located - were torn to pieces. Sailingmaster Loomis later told a friend in Louisiana that parts of people were buried all through the rubble of the destroyed fort. A surgeon with the 4th Regiment, U.S. Infantry, wrote to his father that human remains were scattered over an area of one-square mile.
The entire fort is one enormous mass grave. It is also the site where the largest settlement of free Blacks in North America died on July 27, 1816. And it is the place where the stockpile of arms and ammunition meant to help the Seminole, Miccosukee, and Lower Creek people protect themselves and their lands against U.S. aggression was destroyed.
If you would like to read more, please consider my book' The Fort at Prospect Bluff: https://www.amazon.com/Fort-Prospect-Bluff-British-Apalachicola/dp/0578634627/