"study number","owner","title","investigators","doi","time period"
"08236","ICPSR","Census of Population, 1940 [United States]: Public Use Microdata Sample","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR08236.v1","1940"
"08251","ICPSR","Census of Population, 1950 [United States]: Public Use Microdata Sample","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR08251.v1","1950"
"08533","ICPSR","Census of Population and Housing, 1980 [United States]:  Special Tabulations of Population 60 Years and Over","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR08533.v1","1980"
"08037","ICPSR","Census of Population and Housing, 1980 [United States]:  Summary Tape File 2B ","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR08037.v1","1980"
"08038","ICPSR","Census of Population and Housing, 1980 [United States]: Summary Tape File 3C","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR08038.v1","1980"
"08157","ICPSR","Census of Population and Housing, 1980 [United States]: Summary Tape File 3D","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR08157.v1","1980"
"08402","ICPSR","Census of Population and Housing, 1980 [United States]: Summary Tape File 3H","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR08402.v1",""
"09575","ICPSR","Census of Population and Housing, 1990 [United States]: Summary Tape File 1A","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR09575.v1","1990"
"09688","ICPSR","Census of Population and Housing, 1990 [United States]: Summary Tape File 1B","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR09688.v2","1990"
"09834","ICPSR","Census of Population and Housing, 1990 [United States]:  Summary Tape File 1C","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR09834.v1","1990"
"06011","ICPSR","Census of Population and Housing, 1990 [United States]:  Summary Tape File 1D","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR06011.v1","1990"
"09848","ICPSR","Census of Population and Housing, 1990 [United States]:  Summary Tape File 2B","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR09848.v1","1990"
"09876","ICPSR","Census of Population and Housing, 1990 [United States]:  Summary Tape File 2C","United States Department of Commerce. Bureau of the Census","http://dx.doi.org/10.3886/ICPSR09876.v1","1990"