- CollectionPamphlet 20 - History of Grinnell College and town
- Série organique20.1 - Poweshiek County and Iowa State History
- 4 - Sans titre
- 3 en plus...
- Dossier20.1 pP87sn - Poweshiek Historical and Genealogical Society Newsletter, Searcher.
- Dossier20.1 pP87sr - Poweshiek County Superintendent of Common Schools. Reports.
- Dossier20.1 pP871 - Poweshiek County soil conservation district report. Malcom, Iowa. 46 p.
- Pièce20.1 pP872 - Poweshiek County map, Advertising cartoon map of county
- Dossier20.1 pP872 - Poweshiek County map 1851-1961. photocopies of map.
- Pièce20.1 P872m - Poweshiek County map, 1851-1961.
- Dossier20.1 pP875 - Poweshiek County index to register of births, 1880-1887. Prepared by Elizabeth Ernst. 41 p.
- Dossier20.1 pP878 - Poweshiek Couny Skipper Project. Newsletter.
- Dossier20.1 pP887 - Poweshiek County Farmers Mutual Insurance Association. List of lisses -- September 1, 1938 to September 1, 1939.