one of Mercer's patients, and Mercer prospered as a respected doctor in the area. Mercer married Isabella Gordon and together they had five children: Ann Mercer Patton, John Mercer, William Mercer, George Weedon Mercer, and Hugh Tennant Mercer. In 1774, George Washington sold Ferry Farm, his childhood home, to Mercer, who wanted to make this prized land into a town where he and his family would settle for the remainder of his days. During 1775, Mercer was a member of the Fredericksburg Committee of Safety, and on 25 April, he was one of the members of the Independent Company of the Town of Fredericksburg who sent a letter of concern to Colonel Washington when the British removed gunpowder from the magazine at Williamsburg. In an August vote, Mercer was excluded from the elected leadership of the new regiments formed by the Virginia Convention because he was a "northern Briton", but on 12 September, he was elected Colonel of the Minute Men of Spotsylvania, King George, Stafford, and Caroline Counties. On 17 November 1775, Mercer was one of 21 members chosen for the Committee of Safety of Spotsylvania County. On 11 January 1776, Mercer was appointed colonel to what soon became the 3rd Virginia Regiment of the Virginia Line, and the next day, George Weedon was appointed lieutenant colonel. Future president James Monroe and future Chief Justice of the United States John Marshall also served as officers under his command. In June 1776 Mercer received a letter from the Continental Congress, signed by John Hancock, appointing him brigadier-general in the Armies of the United Colonies and requesting him to report to headquarters in New York immediately. Mercer soon left Fredericksburg to join the Continental Army. American Revolution Before the New York City Campaign, Washington had ordered two forts built to repel the Royal Navy. On the New York side of the Hudson River, Fort Washington was constructed, and Mercer himself oversaw the building of the earthen fortification on the New Jersey side, named Fort Lee. Though the fort was bravely defended, the British captured Fort Washington on 16 November 1776, and the Americans abandoned Fort Lee four days later. The retreat to New Jersey became known as "the Crisis of the Revolution", because the enlistments of most of Washington's soldiers ended on New Year's Day 1777. Mercer led a raid on Richmondtown, Staten Island on October 15, 1776, temporarily securing the