British held Fort Erie and the nearby batteries which dominated the Niagara River, all these vessels were pinned down and unable to leave Black Rock. Late in 1812, Paul Hamilton, the United States Secretary of the Navy had received long-time American lake mariner Daniel Dobbins, who had escaped capture at Detroit and brought information on the British forces on Lake Erie. Dobbins recommended the bay of Presque Isle in Erie, Pennsylvania as a naval base on the lake. ("Presqu'isle" is French for "peninsula", literally "almost an island"). Dobbins was dispatched to build four gunboats there, although Lieutenant Elliot objected to the lack of facilities. Another problem was that a sand bar extended across the entrance to the harbor at Presque Isle, which would prove to make it very difficult to get newly constructed U.S. ships out to open water. In September, Dobbins began directing the cutting of trees. By November, Ebenezer Crosby, a master shipwright, was hired by Dobbins to start work on the four wooden ships. Commodore Isaac Chauncey had been appointed to the command of the United States naval forces on the Great Lakes in September 1812. He made one brief visit to Erie on 1 January 1813 where he approved Dobbins's actions and recommended collecting materials for a larger vessel, but then returned to Lake Ontario where he afterwards concentrated his energies. 1813 In January 1813, William Jones (who had replaced Hamilton as the United States Secretary of the Navy) ordered the construction of two brig-rigged corvettes at Presque Isle, and transferred shipwright Noah Brown there from Sackets Harbor on Lake Ontario to take charge of construction. Other than their rig and crude construction (such as using wooden pegs instead of nails because of shortages of the latter), the two brigs were close copies of the contemporary . The heaviest armament for the ships came from foundries on Chesapeake Bay, and were moved to Presque Isle only with great difficulty. (The Americans were fortunate in that some of their largest cannon had been dispatched shortly before raiding parties under Rear-Admiral George Cockburn destroyed a foundry at Frenchtown on the eastern seaboard.) However, the Americans could get other materials and fittings from Pittsburgh, which was expanding as a manufacturing center, and smaller guns were borrowed from the Army. Master Commandant Oliver Hazard Perry had earlier been appointed to command on Lake Erie, through lobbying by Jeremiah B. Howell,