The collection of news dispatches of the Washington, D.C., Bureau of the Associated Press spans the period 1915-1930 and consists of 375 volumes (387,082 images), housed in 254 boxes, the contents of which provide an unbroken chronology of world and national events as reported by the news agency. Topics that appear in this chronologically arranged collection include but are not limited to World War One, women’s suffrage, the Jazz Age, and the outbreak of the Great Depression.

The papers of John Calvin Coolidge (1872-1933), thirtieth president of the United States, consist of approximately 179,000 documents (218,513 images), which have been digitized from 190 reels of previously reproduced microfilm. Herbert Hoover served as the secretary of commerce during the Coolidge Administration (1921-28). Consult the Index to the Calvin Coolidge Papers in order to locate letters to and from Hoover.

Historic American newspapers selected and contributed by state partners in the National Digital Newspaper Program. Search this collection to find newspaper articles about Herbert Hoover.

This online collection is drawn from three primary sources: The War of the Nations: Portfolio in Rotogravure Etchings, a volume published by the New York Times shortly after the armistice that compiled selected images from their "Mid-Week Pictorial" supplements of 1914-19; Sunday rotogravure sections from the New York Times for 1914-19; and Sunday rotogravure sections from the New York Tribune for 1916-19. Search this collection to find images of Herbert Hoover during his time as head of the U.S. Food Administration during World War I.

This collection assembles a wide array of Library of Congress source materials from the 1920s that document the widespread prosperity of the Coolidge years, the nation's transition to a mass consumer economy, and the role of government in this transition. It includes over 20 items related to Herbert Hoover, mostly from his service as secretary of commerce during the Coolidge administration.

From 1914 through 1920 the Library of Congress acquired over 14,000 pieces of sheet music relating to what ultimately became known as the First World War, with the greatest number coming from the years of the United States' active involvement (1917-1918) and the immediate postwar period. Search this collection to find thirteen items related to Herbert Hoover.

This collection documents the lives of Wilbur and Orville Wright and highlights their pioneering work that led to the world's first powered, controlled, and sustained flight. The General Correspondence series of The Wilbur and Orville Wright Papers contain two items related to Herbert Hoover.