Theodore Roosevelt and John Muir on Glacier Point, Yosemite Valley, California, c. 1906.

Philippine Governor General (and future president) William Howard Taft seated on water buffalo, c. 1904.

A child laboring as a shrimp and oyster worker, Biloxi, Miss. Photographer Lewis Hine, February 1911.

"Six Black workers in the Alexandria (Va.) Glass Factory." Lewis Hine, photographer. Photographic print, June 1911.

Theodore Roosevelt on the campaign trail in October 1912.

Wisconsin Governor Robert La Follette, a Progressive leader, in April 1912 (shortly after his breakdown during the presidential campaign).

President Woodrow Wilson.

A considerably more aged Woodrow Wilson after leaving office, on Armistice Day, 1921.

A photo of Mulberry Street, in the heart of the Italian immigrant community in New York City, in the early 1900s.