Community Foundation of St. Clair County
- Serving the charitable needs and enhancing the quality of life for the communities in St Clair County.
- http://www.stclairfoundation.org/

Cemeteries of St. Clair County
- Cemetery transcription library, contains cemetery records with lists of grave sites by name, date of birth and death.
- http://www.interment.net/us/mi/st_clair.htm