Walker, John Hunt (Compiler). Appointment at Gettysburg: Sergeant George W. Hellig, One Hundred Fifty-first Infantry Regiment, Pennsylvania Volunteers and the Civil War, Seattle, WA.: Ars Obscura, 1994.
Walker, John Hunt (Compiler). Appointment at Gettysburg: Sergeant George W. Hellig, One Hundred Fifty-first Infantry Regiment, Pennsylvania Volunteers and the Civil War, Seattle, WA.: Ars Obscura, 1994.