The photographer Walker Evans in a February 1937 portrait by his colleague Edwin Locke. 35mm negative, Farm Security Administration. View full size.

February 1940. Courthouse and auto transport hauling Buicks in Chillicothe, Ohio. View full size. 35mm nitrate negative by Arthur Rothstein for the FSA.

Posters advertising a 1936 circus near Lynchburg, South Carolina. 35mm nitrate negative by Walker Evans for the Farm Security Administration. View full size.

November 1935. Sons of American Legion members in Bethlehem, Pennsylvania. View full size. 35mm nitrate negative by Walker Evans for the FSA.

February 1940. The snowballs fly at Central Grade School in Chillicothe, Ohio. View full size. 35mm nitrate negative by Arthur Rothstein for the FSA.

June 1916. Fall River, Mass. "Rhea Quintin, 14 years old. Drawing in on Webb frame. Been at it about three months. Requires great deal of mental application and accuracy and good oversight. Takes over a year to learn. Seemed very young in certificate office. Miss Smith thought she was a little schoolgirl coming for some other purpose." View full size. Photo and caption by Lewis Wickes Hine.

February 1940. Getting on the bus during a snowstorm in Chillicothe, Ohio. 35mm nitrate negative by Arthur Rothstein for the FSA. View full size.

February 1940. A wintry scene near Chillicothe, Ohio. View full size. 35mm nitrate negative by Arthur Rothstein for the Farm Security Administration.

September 1942. An early snow at the Benbow Mill of the Metal Reserves chromite development in Stillwater County, Montana. View full size. 4x5 Kodachrome transparency by Russell Lee for the Office of War Information.

February 1940. A snowy intersection with gas station in Parkersburg, West Virginia. View full size. 35mm nitrate negative by Arthur Rothstein.

President Coolidge buying Christmas seals in 1923 to benefit the Tuberculosis Association. View full size. National Photo Company Collection.

February 1940. A grocery store window in Salem, Illinois. View full size. 35mm nitrate negative by Arthur Rothstein for the Farm Security Administration.

February 1940. A snowy street in Parkersburg, West Virginia. View full size. 35mm nitrate negative by Arthur Rothstein for the Farm Security Administration.

February 1942. Third-graders in the Farm Security Administration elementary school at Weslaco, Texas. View full size. Photo by Arthur Rothstein.

February 1942. Janitor at the Farm Security Administration elementary school in Weslaco, Texas. 35mm nitrate negative by Arthur Rothstein. View full size.