A special military map created by the War Department of the vicinity of Camp Dix, in New Jersey
John W. Swartzwelder Jr. and Nancy Joyce (Koger) Swartzwelder
Woodrow Wilson Presidential Library & Museum
Camp Dix (N.J.)
United States. War Department, “Map of Fort Dix: 1st Lieutenant TJ Koger,” No date, T100101, Thomas J. Koger Collection, Woodrow Wilson Presidential Library & Museum, Staunton, Virginia.