Columbia subject headings:
Agriculture--Societies, etc.--Iowa--Shelby County.
Farm life--Iowa--Shelby County.
Iowa--Rural conditions.
Irwin (Iowa)--Social life and customs.
Shelby County (Iowa)--Description and travel.
Harvard subject headings:
Agricultural societies--Iowa--Shelby County.
Agriculture--Iowa--Shelby County--Societies, etc.
Farm life--Iowa--Shelby County.
Iowa--Rural conditions.
Irwin (Iowa)--Social life and customs.
Rural conditions.
Shelby County (Iowa)--Description and travel.
Princeton subject headings: