- Alnwick/Haldimand Archive
- Brighton Digital Archives
- Campbellford-Seymour Heritage Society
- Cramahe Archives
- Cramahe History and Heritage
- Cobourg and District Historical Society
- Cobourg and District Images
- Cobourg Library Family HistoryPage
- Cobourg Newspaper Index
- Cobourg Public Library
- Lakeshore Genealogical Society
- Northumberland County Archives & Museum
- Port Hope and District Historical Society
- Port Hope Archives
- Port Hope Public Library
- Port Hope, Ontario – A Living Past
- Warkworth Public Library