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Latrobe Hall, built for the Civil Engineering Department, and Maryland Hall, which housed the Civil, Mechanical, and Electrical Engineering departments, served as quarters for the Student Army Training Corps in 1918.

William Osler, one of the founding physicians of the Johns Hopkins Hospital, had a son, Edward Revere Osler. In 1915 Revere, as he was known, dropped out of Oxford’s Christ Church College to join the war effort. In August 1917, serving in Belgium…

This map, featuring hand-drawn boundaries, and accompanying text are part of Bowman's working copy of the "Black Book." The Black Book was the American delegation’s secret guiding document in Paris Peace Conference negotiations, and its creation was…

Isaiah Bowman kept a diary during his time in Europe, in which he describes many meetings with fellow geographers and conference participants to determine postwar national boundaries.

An identification card issued by the American Commission to Negotiate Peace.

This photo of Isaiah Bowman's map-strewn hotel room in the Crillon de Paris Hotel was taken on the day in 1919 that conference officials met there to determine the preliminary boundaries of postwar Germany.