- CollectionMS/MS01.113 - Duane Krohnke Papers
- Box1 - Duane Krohnke '61 on Joseph Welch '14
- File1 - Major Addresses of the Grinnell College Convocation
- File2 - Newspaper Clippings about Joseph Welch
- File3 - When Even Angels Wept, Lately Thomas, photocopies
- File4 - Krohnke's Joseph Welch research, photocopies
- File5 - Fifty Years A-Growing: 1919-1968, Hisotry of New Law Firm in Old Boston
- File6 - Hale and Dorr: Backgrounds and Styles
- File7 - Felix Frankfurter Papers
- File8 - Research Notes: Joseph Welch
- 4 more...