Photographs of University of Idaho living groups, residences, fraternities and sororities, and social activities and events. Photos were taken primarily by Hodgin's Studio in Moscow or by the University of Idaho Publications or Photo Services departments. About half of the images have been digitized as the University of Idaho Student Organizations digital collection.

The numbering system was devised by Special Collections staff. Negatives and oversized prints are housed separately - negatives in the Copy Negatives area near Day-NW and oversized prints in the oversized metal cabinets.