Census Block Shapefiles from 1960-80

Discussion created by munsonmunson on Jun 6, 2013
Hey all,

I'm looking for shapefiles for census boundaries from the 1960, 70 and 80 censuses. I've found tract level data, but I would like to find block group or block level data if I can (I've already found it for the 1990, 2000 and 2010 censuses). Any ideas for where to look?