Iowa State senator, 1967-1972 and Lieutenant Governor of Iowa, 1973-1978. Subject files, correspondence, speeches, etc.

Attorney, Iowa Railroad Commissioner and candidate for the U.S. Senate. Correspondence, speeches, notes and other material relating primarily to legal disputes involving transportation of agricultural products.

Lawyer and member of the Interstate Commerce Commission. Correspondence, subject files, speeches, etc. all relating to his service with the Interstate Commerce Commission.

U.S. Senator from Iowa , and educator. Arranged in 9 series, the papers consist of subject files, casework files, issue statements, clippings, audio, visual, film and photographs during his term in office. Subjects of special concern to Clark range from Africa and international relations to agriculture and conservation, Democratic Party politics to the aged, and education to transportation.

Soldier, 13th Regiment of railway engineers, U.S. Army, in W.W.I. Correspondence, picture postcards, and photographs.

This collection is comprised of the papers of Iowa Representative Fred Schwengel.

Member of faculty, University of Iowa colleges of law and engineering. Transportation safety consultant.

Governor and U.S. Senator from Iowa. Gubernatorial and senatorial office files relating to his political career.