During the Ox Hill battle, the Confederates established temporary hospitals along the Little River Turnpike and afterward moved most of their wounded 2.5 miles west to a field hospital at the Chantilly House and plantation. Union forces collected their wounded at the Millan House just south of here, where surgeons worked until late at night performing amputations. Around 3 a.m., the Union army withdrew toward Jermantown and Fairfax Court House, leaving the most seriously wounded behind to become prisoners by dawn. Sgt. Daniel Fletcher of the 40th New York Volunteers, wounded in the knee, recalled that a rebel colonel took the prisoners' names for exchange but said no help was available because commissary stores had not arrived, and although two surgeons remained in charge, their wounds were not dressed until the fourth day after the fight. About 150 wounded men were in the buildings, with five or six dying every twenty-four hours, while Corporal Flynn and other unwounded men buried the dead and scavenged potatoes, beets, turnips, and other food when rations ran out. The Sanitary Commission agents were the first to find them and brought bread, and when release was finally arranged, about thirty ambulances carrying two wounded men each left Ox Hill about four o'clock in the afternoon and reached Washington about dawn the next day.