The materials in the Cooperative Wildlife Research Unit Photographs span from 1949-1964, with many materials undated. The photos were taken or collected by Paul Dalke.

The photographs included are scenes of the outdoors, wildlife and people. Some of the photographs have detail of who took the photos and where they were taken, many are unmarked and undated.

There is one box to this collection, and two folders within the box. The materials were kept in the same order given. The titles of the folders are the titles given to them when donated. The photographs are titled based of content in photo, or what descriptions were included about the photo.