Research Archives – United States

General or National
Military Records – Links and directors through the National Archives
Military Records – Contact addresses for US military records
National Archives
Orchard Lake Michigan Polish Mission – A collection of several archives with the focus on Polonia
Polish Museum of America (Chicago) – Substantial holdings of organizational and other records from American Polish communities

State and Local
Illinois Regional Archives Depository System – Important regional documents and records are held and serviced at seven universities