The USS Delaware was designed by naval architect William Doughty and built in the Philadelphia Naval Yard in 1794 as the merchant ship Hamburgh Packet. The Navy purchased her on May 5, 1798. Captain Stephen Decatur, Sr., was appointed to command and outfit her for sea.
During the Quasi-War with France, Delaware cruised to protect American merchant shipping from French privateers. She guarded convoys during their approach to Philadelphia and New York, patrolled the West Indies, and escorted convoys into Havana.
Her first prize, the privateer La Croyable, was taken off Great Egg Harbor July 7, 1798. Lloyd's List (LL) reported on 17 August that the American sloop-of-war Delaware had captured a French privateer of the American coast. The privateer had captured the merchantman Liberty, Vredenburg, master, which had been sailing from Philadelphia to Liverpool. Liberty had since been recaptured.[1]
From 14 July to 23 September, she cruised in the West Indies, often in company with the frigate, and together the ships took two privateers prize. During her second cruise in the West Indies, between December 15, 1798 and May 20, 1799, she took another prize, privateer "Marsouin" on 5 March, 1799 off Havana[2] and won the thanks of the merchants of Havana for the protection she had given merchantmen sailing to that port. She headed home and was off Fort Mifflin by 23 May, 1799.[3]
Between cruises Capt. Thomas Baker became her captain & a new crew was recruited.[4]
Delawares return to the West Indies from July 1799 to July 1800 found her joining the Revenue Cutter in taking a privateer sloop. Sometime in October she and USS Pickering recaptured brig "Henrich".[5] She took privateer brig "Ocean" on October 29, 1799 off Curocao[6] after a 7-hour chase, rescuing 30 Americans held prisoner in the privateer. She made a final cruise off Cuba in the late fall and winter of 1800-1801, then returned to Baltimore, where she was sold early in June 1801.