Charles Hartwell was born on May 6, 1841 in Natick, Massachusetts to Stedman and Rebecca Dana (Perry) Hartwell. He entered the Civil War as a private in the 7th New York State Militia, but shortly afterward received a commission as a 1st Lieutenant in the 11th U.S. Regular Infantry, where he served as an aide-de-camp to Major General Nathaniel P. Banks. When Congress authorized the enlistment of black soldiers, Hartwell was promoted to Colonel and became the commander of the 77th U.S. Colored Troops. During the War, he fought in several key battles, including Bristoe Station, Rapahannock Station, Yorktown, Hanover Courthouse, Mechanicsville, Gaines Mills, Savage Station and Port Hudson. On December 2, 1865, Hartwell was brevetted a brigadier general for excellence in service. He remained in the army after the war and died in Castroville while on active duty on October 3, 1876.
29° 25.300, -098° 28.008
San Antonio National Cemetery