These life histories were written by staff of the Folklore Project of the Federal Writers' Project for the U.S. Works Progress (later Work Projects) Administration (WPA) from 1936-1940. Search on the phrase "World War I" in order to locate life histories that mention World War I.

The diaries of U.S. army officer George S. Patton (1885-1945) are part of a larger collection of Patton papers available for research use onsite in the Manuscript Reading Room of the Library of Congress. The collection documents Patton's military career, including his attendance at the United States Military Academy at West Point, 1904-1909; his service on the Mexican border as a member of John J. Pershing's Mexican Punitive Expedition, 1916-1917; his service as an aide-de-camp to Pershing and later as a tank commander in World War I, 1917, 1918, and 1919; and his military career from 1938 to 1945. It includes his annotated diary transcript for the Meuse-Argonne offense in 1918.

The diaries, notebooks, and address books of John Joseph Pershing (1860-1948), U.S. army officer and commander-in-chief of the American Expeditionary Forces in World War I, are part of a larger collection of Pershing papers available for research use onsite in the Manuscript Reading Room of the Library of Congress. The entire collection spans the years 1882-1971, with the bulk of the material concentrated in the period 1904-1948. It consists of correspondence, diaries, notebooks, speeches, statements, writings, orders, maps, scrapbooks, newspaper clippings, picture albums, posters, photographs, printed matter, and memorabilia. This digital collection is comprised of the contents of Boxes 1-7 (Diaries, Notebooks, and Address Books, 1882-1925) and Boxes 395-397, containing similar items in the Addition series.

The private memoranda, desk diaries, and notes, 1915-1922, of diplomat and lawyer Robert Lansing (1864-1928) consist of 22 volumes (3,090 images) located in containers 63-67 of a larger collection of Lansing papers available for research use onsite in the Library of Congress Manuscript Reading Room. They were digitized from 3 reels of previously produced microfilm. The entire collection spans the years 1831-1935, with the bulk of the material concentrated in the period 1914-1920, when Lansing served as counsellor for the Department of State (1914-1915) and as secretary of state (1915-1920), with a focus on World War I and Lansing's participation in the American commission to negotiate peace.

The papers of Woodrow Wilson (1856-1924), scholar, president of Princeton University, governor of New Jersey, and president of the United States (1913-1921), consist of approximately 280,000 documents, comprising approximately 620,000 images, most of which were digitized from 540 reels of previously produced microfilm. Among the highlights, the collection includes Wilson's speech notes, in shorthand, for his "Fourteen Points" address, January 8, 1918.