Zoologist-botanist, collector of plant and specimens for the University of Michigan in the Middle East and South Asia. The collection includes biographical and personal materials, correspondence, topical files, journals, writings, estate materials, photographs and motion pictures. Much of the collection relates to his travels and collecting expeditions in the Middle East and South Asia.
The Walter Koelz papers document Koelz's travel and work in South Asia and the Middle East in the 1930s and 1940s, as well as his life in Michigan, both before and after traveling abroad. The collection has been divided into seven series: Biographical and Personal, Correspondence, Topical File, Journals, Writings, Estate Materials, and Visual Materials.