The Smithsonian American Art/National Portrait Gallery Library has in its collection the photograph archive, The Pageant of America. This collection has also recently been digitized by The New York Public Library:
In 1926, the United States celebrated its sesquicentennial, and a number of special projects were organized to document the country's people, history, culture, and folkways. One such project was The Pageant of America: A Pictorial History of the United States, published by Yale University Press from 1925 to 1929. Professor Ralph Henry Gabriel edited the work, and all told, it contained 15 volumes that addressed themes like exploration, arts and leisure, industry, commerce, and politics. This digital collection from the New York Public Library contains over 7000 of the published and unpublished photographs and prints used in these extravagant volumes. It's great just to look through the "Source Title" headings found by clicking on "Collection Contents" near the top of the page. Here visitors can meander through sections like "In defense of liberty", "American idealism", and "The American spirit in architecture". One can imagine that this collection could be used in American studies classroom, or in a setting that addresses the history of photography.
The Libraries describes the multiple volumes in its catalog:
v. 1. Adventures in the wilderness, by Clark Wissler, C.L. Skinner and William Wood.
v. 2. The lure of the frontier, a story of race conflict, by R.H. Gabriel.
v. 3. Toilers of land and sea, by R.H. Gabriel.
v. 4. The march of commerce, by Malcolm Keir.
v. 5. The epic of industry, by Malcolm Keir.
v. 6. The winning of freedom, by William Wood and R.H. Gabriel.
v. 7. In defense of liberty, by William Wood and R.H. Gabriel.
v. 8. Builders of the Republic, by F.A. Ogg.
v. 9. Makers of a new nation, by J.S. Bassett.
v. 10. American idealism, by L.A. Weigle.
v. 11. The American spirit in letters, by S.T. Williams.
v. 12. The American spirit in art, by F.J. Mather, Jr., C.R. Morey and W.J. Henderson.
v. 13. The American spirit in architecture, by T.F. Hamlin.
v. 14. The American stage, by O.S. Coad and Ewin Mims, Jr.
v. 15. Annals of American sport, by J.A. Krout.
—Elizabeth Periale, with the very able assistance of Chris Cottrill