- Libraries: Libraries often have extensive collections of primary source documents, including books, manuscripts, and historical records.
- Archives: Archives are repositories for historical records, and they often have collections of primary source documents.
- Museums: Museums often have collections of artifacts and other primary source materials that can be used for research.
- Online databases: There are many online databases that provide access to primary source documents, including historical newspapers, maps, and government records.
- Historical societies: Historical societies often have collections of primary source documents related to the history of the area.
- Personal collections: Some individuals may have personal collections of primary source documents that they are willing to share with researchers.