The 35 mm slides were digitized in 2016 and are available online.

The title, date, and subject category information for each slide comes from information supplied by the photographer. Library of Congress staff added subject and geographical headings.

To start a new search for particular subject matter, go to to the Prints & Photographs Online Catalog home page and include the collection code "mrg" with search words or phrases that might appear in the title or subject keywords. Examples:

• For gas stations: gas station mrg


• For buildings shaped like objects: mimetic buildings mrg


• For structures photographed in Washington state: Washington State mrg