Captain Hughes took this picture of the crowd in the grandstand watching a Gas Demonstration. The date and location of this photo is not mentioned but it appears to have been taken at Camp Holabird. It is assumed the demonstrations are taking place with inert gases not the deadly materials used in actual chemical warfare. Captain Hughes, who had been with the Army of Occupation, returned to the U.S. with the13th Field Artillery and was stationed at Camp Holabird, Maryland until February 14,1920 after six months training in the Motor Transport School. James C. Hughes, as part of the 35th Division, left Fort Sill, Oklahoma, and traveled to Hoboken, New Jersey, where he boarded the troop ship "Ceramic" on May 18, 1918. Hughes arrived in Liverpool, England, on June 1, 1918 and then landed at Le Havre, France, on June 9, 1918. Hughes fought in the battles of St. Michael and the Meuse-Argonne. He was at Verdun on Armistice Day, November 11, 1918. He took no photos of the actual fighting. He did take many photographs after the war as part of the Army of Occupation until he left France on July 18, 1919. A full biography of James Clark Hughes is available on Kansapedia.