When looking for Olympic-related materials, there are a few searching tips that can help you navigate the Prints & Photographs Online Catalog. Given rights considerations, a fair amount of material from more recent games may display only as thumbnail images to those searching from outside Library of Congress buildings. These types of images are available to download while visiting the Library of Congress.
You can view non-digitized materials described in the Selected Collections section of this Research Guide in the Prints & Photographs Reading Room. Some items may require advance notice to view (such as the New York World-Telegram and Sun Newspaper Photograph Collection and certain parts of the Look Magazine Photograph Collection). Be sure to follow any guidance listed in the "Access Advisory" field of the online record to submit a request.
The Prints & Photographs Reading Room has an unpublished list (#110), "Olympic Games, 1896-1984" last updated in 1996. This includes a list of visual materials organized by year, citing items from LOTs, Reading Room files, panoramic photographs, U.S. News and World Report Magazine, and illustrated newspapers (i.e.Frank Leslie's Weekly, Harper's Weekly). It also has suggestions for other institutional resources.