Cutting homemade soap (comprised of grease and lye) into bars. In a rural community with few medical services, ensuring that the knife didn't slip was crucially important. New Mexico, 1939.
Photo by Russell Lee. [American Memory link]
Showcasing some of the 160,000 images taken between 1935 and 1944 by government-hired photographers. (If you were to look at 100 of them per day, every day, you'd need more than four years to view them all).