Correspondence; manuscripts of articles and his book The Emerging Layman (1962); research files of clippings, newsletters, and articles; copies of articles by and about Thorman; copies of his speeches; and family and business documents.

Records relating to Thorman's tenure with NCR are in the NCR collection (CNCR). His work with Ave Maria, Act, and Voice of St. Jude is documented only by bound volumes of the publications for some of the years of his employment.