Recruits with their mattresses tied to them to serve as life preservers. Photo taken at Newport Naval Training Station, Rhode Island. Underwood and Underwood., 04/1917

Medical Department - Influenza Epidemic 1918 - Influenza masks worn by soldiers in camp. Soldiers at Fort Thomas, Kentucky, wearing the influenza masks. The fort was quarantined during the worst days of the epidemic

Navy - Sentries - Naval Militia on guard at Marblehead, Mass. Photo shows Naval Militiamen patrolling the boulevard at Marblehead, Mass…1917

Navy - Sentries - Picture shows New York Naval Militia guarding the Williamsburg Bridge, N.Y. in the snow storm, Feb. 5, following the diplomatic break with Germany

Colleges and Universities -West Point - Entrance day at West Point. Photo show the new cadets at West Point Military Academy, checking up, June 14, 1917

Drills - Cavalry - Riding instruction. "Riding bronchos." The wooden horse is used in teaching soldiers the proper way to mount and ride a horse. Photo taken at Camp Darling, Framingham, Massachusetts

Navy - Recreation - Sailors witnessing a motion picture show on a battleship

Medical Department - Influenza Epidemic 1918 - Masks for protection against influenza. 1700 of these masks were distributed by policemen to all police stations, to be used whenever duty calls

Chemical Warfare Service - Drills With Clouds of Smoke- United States - Remarkable photo of National Army men facing gas attack--in training camp