November 1938. "The old Paxton residence. Omaha, Nebraska." Medium format acetate negative by John Vachon for the Farm Security Administration. View full size.

November 1938. "Railroad and coal yard, Omaha, Nebraska." Medium format acetate negative by John Vachon for the Farm Security Administration. View full size.

November 1938. "Public Works Administration housing project (Logan Fontenelle Homes) for Negro families. Omaha, Nebraska." Acetate negative by John Vachon. View full size.

November 1938. "Hotel Fontenelle, social center of Omaha, Nebraska." Medium format acetate negative by John Vachon for the Farm Security Administration. View full size.

November 1938. "Gashouse district. Omaha, Nebraska." Medium format acetate negative by John Vachon for the Farm Security Administration. View full size.

June 1940. "General store, Pie Town, New Mexico. The post office has been moved from this store to another small grocery store." Medium format negative by Russell Lee. View full size.

June 1940. "Cafe. Pie Town, New Mexico." Sporting the biggest accent west of the Mississippi. Medium format negative by Russell Lee for the Farm Security Administration. View full size.

Circa 1865. "Mirror Lake, Yosemite Valley, albumen silver print. Carleton Watkins (1829 - 1916), an early photographer of Yosemite, captured this pristine view of Mirror Lake while most of the country was engaged in the Civil War. One of the best landscape photographers of the 19th century, Watkins used the cumbersome, demanding technology of his era, which required large glass wet plate negatives, and produced some of the most stunning images of this extraordinary wilderness. His views are credited with inducing members of Congress to pass legislation in 1864 that required California to protect the area from development. Abraham Lincoln, reported to have been very taken with the beauty of the images, signed the bill. Later efforts by landscape designer Frederick Law Olmsted and naturalist John Muir resulted in Yosemite being proclaimed a national park in 1890." View full size.

December 1940. Starke, Florida. "Soldiers Joy Cafe, newly constructed for construction workers near Camp Blanding." Acetate negative by Marion Post Wolcott. View full size.

December 1940. Starke, Florida. "Construction workers drinking beer in Soldiers Joy Cafe near Camp Blanding." Medium format acetate negative by Marion Post Wolcott. View full size.

December 1940. Radford, Virginia. "Influx of construction workers to build Hercules Powder Plant -- new arrivals in town. They've come by bus from West Radford." Medium format acetate negative by John Vachon for the Farm Security Administration. View full size.

St. Paul, Minnesota, 1905. "Post Office, Fifth and Market Streets." The postal palace last glimpsed here. 8x10 inch glass negative, Detroit Publishing Company. View full size.

1905. "Pioneer Press building, St. Paul, Minnesota." Ghost pedestrians galore! 8x10 inch dry plate glass negative, Detroit Photographic Company. View full size.

Duluth, Minnesota, circa 1904. "A Coaching Party (four-horse team with coach on Boulevard Drive)." 8x10 inch dry plate glass negative, Detroit Photographic Company. View full size.

Syracuse, New York, 1904. "Central Technical High School, Warren and Adams streets." 8x10 inch dry plate glass negative, Detroit Photographic Company. View full size.