Headstone for Lt. Elam S. P. Clapp (1842-1864) in Oakwood Cemetery, 50 101st Street, Troy, Rensselaer County, New York. Lt. Clapp led Company A, 125th NY Volunteer Infantry, in the 3rd Brigade, First Division, II Corps, Union Army of the Potomac, at the attack on the “Mule Shoe” on March 12, 1864 during the Battle of Spotsylvania Court House. Fighting there was some of the most desperate and bloody of the war. The regiment’s commander, Capt. E. P. Jones, was killed, and Lt. Clapp was mortally wounded. This 300-acre cemetery was established in 1848 and designed in rural style. It offers a beautiful view of the Hudson Valley and contains the remains of over 16,000 people, including Samuel “Uncle Sam” Wilson.