Search Results Use the search box below to revise your search, or start a new search. Studies (2) Variables Publications Your query returned 2 studies. Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. 1. Economic Thought and Occupational Structure in Four Middle Western Cities, 1850-1860 (ICPSR 7456) Abbott, Carl 2. Indiana Voter: Nineteenth Century Rural Bases of Partisanship, 1870 (ICPSR 30) Hammarberg, Melvyn A.