Professional papers and academic records.

Poet (numerous books from Worn Earth, 1932), editor of the O. Henry Prize Stories, 1954-1959, director of the Iowa Writers' Workshop, 1941-1967, and co-founder and director of the International Writers' Program, 1967-1976 at the University of Iowa. Literary manuscripts, correspondence, subject files, and student works documenting his career as a writer and teacher.

Photocopies of articles on conservation and bookbinding.

Professor of physics and astronomy. Researched musical acoustics and solid state physics. Offprints and Iowa Acoustics Colloquium conferences.