"study number","owner","title","investigators","doi","time period"
"09430","ICPSR","Southern Agricultural Households in the United States, 1880","Sutch, Richard; Ransom, Roger","http://dx.doi.org/10.3886/ICPSR09430.v1","1880"
"09427","ICPSR","Union Army Slave Appraisal Records from Mississippi, 1863-1865","Margo, Robert A.","http://dx.doi.org/10.3886/ICPSR09427.v1","1865"
"00079","ICPSR","United States Historical Election Returns, 1788-1823","Inter-university Consortium for Political and Social Research","http://dx.doi.org/10.3886/ICPSR00079.v5","1823"