 Jacob Erwin of Company C of the 1st New York Cavalry, killed in one such action, is believed to have been the first volunteer cavalryman of the Army of the Potomac to have been killed during the conflict.Robert E. Lee is recorded as having been a member of the congregation at some time during this period of its history.The congregation of Pohick Church had scattered thoroughly by the end of the war, so that for a time the building stood empty and unused.