the last American cavalry crossed the Dan at Boyd's Ferry with Lee and Carrington in the last boat. Blocked by high water and lacking boats, Cornwallis pulled back to Hillsborough, North Carolina. Carrington was present at the Battle of Guilford Court House a few weeks later. On April 19, Greene's army approached the British force under Lord Francis Rawdon at Camden, South Carolina. Deciding that Rawdon's defenses were too strong, Greene took up a position on Hobkirk's Hill to the north of Camden. On 22 April, Greene shifted his position and sent his cannons north to a secure location. When Greene returned to Hobkirk's Hill on 24 April, Rawdon received intelligence that the Americans were without artillery and low on food. On the morning of April 25, 1781, Carrington arrived in the American camp with the artillery and provisions. That day, Rawdon advanced and won the Battle of Hobkirk's Hill, but during its early stages he was unpleasantly surprised when Harrison's three 6-pound cannons suddenly opened fire. In July 1781, Greene granted Carrington leave to try to fill the vacancy in the 4th Continental Artillery Regiment after Thomas Proctor resigned in April. Greene filled the quartermaster general position with a deputy in case Carrington returned. During the Siege of Yorktown, Carrington, Ebenezer Stevens, and John Lamb rotated responsibility as Henry Knox's chief assistant. It is not clear if Carrington exercised direct command over Whitehead Coleman's company of the 1st Artillery or the three companies of the 4th Artillery present at Yorktown. Since he never received promotion, Carrington resumed his post as quartermaster general under Greene in the summer of 1782 and served in that capacity until the end of the war. Later career Carrington served as treasurer at the first meeting of Virginia's Society of the Cincinnati on October 9, 1783. During the war, Carrington became a friend and confidant of George Washington. Virginia sent Carrington as a delegate to the Continental Congress from 1786 to 1788. (Boatner states that it was 1785–1787.) He often visited Washington at Mount Vernon during this period. After being elected president, Washington appointed Carrington as the first U.S. Marshal for Virginia, a position he held from 1789 until March 1791. He then served as Virginia's supervisor of the revenue from 1791 to 1794. The new president often sought Carrington's advice on political matters. During his second term, President Washington offered Carrington the posts of