Collections / Cemetery Records / Union Cemetery Joseph Allen Died: March 6, 1872 Joseph Allen served in Company H, 2nd NJ Cavalry during the Civil War. He died in 1872. Cause of death was inflamation of the lungs. He is buried in Union Cemetery, Hackettstown, NJ (Section J, Lot 67). Image rights owned by the Hackettstown Historical Society. Do not use without permission.