He estimated that a force consisting of gunboats and barges that could be sailed or rowed, manned by sailors and those in the shipbuilding industries, could engage British landing parties in the shallow waters of the Bay.
The Flotillamen, totaling 4,370 men at their largest, were motley crews composed mainly of U.S. Navy sailors, merchant seamen, Chesapeake Bay watermen, privateers, free negros, and runaway slaves.
Later, when they became shipless and on the march, from Benedict, Maryland, a battalion of 700 marines from the Washington Navy Yard, would join them, as they moved north to defend the Capital and make an abortive stand at Bladensburg, against the rapid British advance.
On June 26, after the arrival of troops commanded by U.S. Army Colonel Decius Wadsworth, and U.S. Marine Captain Samuel Miller, Barney attempted a breakout.
In his report of the affair, the tactical commander, Admiral Sir George Cockburn wrote: as we opened the reach above Pig Point, I plainly discovered Commodore Barney's broad pendant in the headmost vessel, a large sloop and the remainder of the flotilla extending in a long line astern of her.
I found here laying above the flotilla under its protection, thirteen merchant schooners, some of which not being worth bringing away I caused to be burnt, such as were in good condition, I directed to be moved to Pig Point.
Whilst employed taking these vessels a few shots were fired at us by some of the men of the flotilla from the bushes on the shore near us, but Lieutenant Scott whom I had landed for that purpose, soon got hold of them and made them prisoners.
The 1814 Register of Patients at the Naval Hospital Washington, provides a unique glimpse of the aftermath of battle and a record of the lives of individual sailors, marines, soldiers, and civilians many who were part of the Chesapeake Bay Flotilla, from their admission to discharge.
The Register, covers the period 2 June to 30 December 1814, is one of our most important primary sources for the names and units of American casualties at Bladensburg, see thumbnail.
The Flotilla inflicted numerous casualties on the attacking British ships, especially during the attempted night assault on Battery Babcock by a Royal Marine landing party.
The Turtle Shell was lying in the main river channel near Wayson's Corner, and covered by five feet of mud, the ship was well preserved, although it appeared the bow was torn off in an explosion.