The papers document the career, research, and personal life of John Daniel Kraus, Taine G. McDougal Professor of Electrical Engineering and Astronomy at Ohio State University, founder and Director of the Ohio State-Ohio Wesleyan Radio Observatory. The papers include family and professional correspondence and papers, notes and papers on antenna design, drafts of books and professional publications, awards and certificates, photographs, materials on the Kraus Wilderness Preserve, and other materials covering a period from 1895 until John Kraus' death in 2004.