BOC Master Address File- Multiple MAFIDs
IRS Form 1040 External Commingled File
Census Edited File
BOC Census Numident (CNUM)
BOC Master Address File Auxiliary Reference File (MAFARF)
Master Address File Extract (MAFX)
Decennial Census
BOC Crosswalk 1940 IPUMS Research
BOC PIK Crosswalk Census Unedited File (CUF)
1940 IPUMS Research
Census IPUMS Research

Census Bureau

Minnesota
U. of Illinois Urbana-Champaign
Maryland
California - UCLA