While the collection consists of images from nearly a century, the bulk of the photographs range from the mid-1930s to the mid-1950s. Images document the people, activities, and sites that make up a part of the National Capital Parks. Highlights include houses that were demolished to make way for the C&O Canal Park, Work being performed by Civilian Conservation Corps and Works Progress Administration personnel, World War II defense installations, Carter Barron Amphitheater, and flood and natural damage to park sites.