The John Vachon Photographic Collection consists of 58 photographs taken by Vachon of scenes in eastern North Dakota. The photographs were taken in January 1948, as part of a project undertaken by the Standard Oil Company to document the benefits of oil on everyday life in the United States. The original photographs and negatives are housed in the Standard Oil Collection, Special Collections and Archives, University Libraries, University of Louisville, Kentucky.
For further details: http://digital.library.louisville.edu/cdm/landingpage/collection/sonj