UNDERWOOD, Sylvester - Private, Co. A, Detachment. Born 1845 in Brushvalley Twp, Indiana Co., PA, son of William & Mary Underwood. Drafted at age 20. Mustered in 28 Sept 64 at Greensburg, Westmoreland Co., PA. Mustered out 3 May 65. Died 12 Feb 1896 of Pneumonia. Buried in Dias Cemetery, Brushvalley Twp, Indiana Co., PA. Headstone