"study number","owner","title","investigators","doi","time period"
"07552","ICPSR","Census Tract-Level Data, 1960","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR07552.v1","1960"
"07753","ICPSR","Population Redistribution and Economic Growth in the United States:  Population Data, 1870-1960","Kuznets, Simon; Thomas, Dorothy Swaine","http://dx.doi.org/10.3886/ICPSR07753.v2","1960"
"09430","ICPSR","Southern Agricultural Households in the United States, 1880","Sutch, Richard; Ransom, Roger","http://dx.doi.org/10.3886/ICPSR09430.v1","1880"