Author headshot: Lawrence Jackson
Road to Death Valley: Courtesy of the estate of Addie Ruth Maurer Olson.
Crashed plane: Courtesy U.S. Army Chemical Corps Museum.
Lewisite still: Photo courtesy of L. Philip Reiss, Grandson of W. Lee Lewis.
Battlefield map: Courtesy U.S. Army Chemical Corps Museum.
War Gas Investigations report “Confidential”: Bureau of Mines, Record Group 70, “Reports and Other Records Pertaining to Toxic Gases & War Gas Investigations,” Finding Aid A-1, Entry 46, Box 110, National Archives at College Park, College Park, MD.
Photo of Walter T. Scheele: National Archives Microfilm Publication M1085, Old German Files 1909-192, Case Number 8000-925, Roll 279, frame 203, NACP.
Man in Mask: National Archives, photo no. 70-CW-29.
Blueprint of Apparatus for Testing Gas on Man: Bureau of Mines, Record Group 70, “War Gas Investigations 1918-1919, Semi-Monthly Reports, Dec. 17 – Feb. 18,” Finding Aid A-1, Entry 47, Box 117, NACP.
Bomb schematic: Bureau of Mines, Record Group 70, “War Gas Investigations 1918-1919, Semi-Monthly Reports, April-June 18,” Finding Aid A-1, Entry 47, Box 119, NACP.
Aerial photo of gas attack: National Archives, photo no. 111-SC-10878, NACP.
Smoke pot photo: National Archives, photo no. 111-SC-29510