Columbia subject headings:
Harvard subject headings:
Archives--Wisconsin--Milwaukee Metropolitan Area--Catalogs.
Milwaukee (Wis.)--History--Archival resources.
Milwaukee County (Wis.)--History--Archival resources.
Milwaukee Metropolitan Area (Wis.)--History--Sources--Bibliography.
Princeton subject headings:
Milwaukee (Wis.)--History--Archival resources.
Milwaukee County (Wis.)--History--Archival resources.