Family History Center
Mormon Genealogy
http://www.genealogy.about.com
Chatham
https://familysearch.org/learn/wiki/en/Chatham_Ontario_Family_History_Centre
Kitchener
https://familysearch.org/learn/wiki/en/Kitchener_Ontario_Family_History_Centre
Lambton-Sarnia
https://familysearch.org/learn/wiki/en/Sarnia_Ontario_Family_History_Centre
London
https://familysearch.org/learn/wiki/en/London_Ontario_Family_History_Centre
Simcoe
https://familysearch.org/learn/wiki/en/Simcoe_Ontario_Family_History_Centre
Tillsonburg
https://familysearch.org/learn/wiki/en/Tillsonburg_Ontario_Family_History_Centre
St Thomas
https://familysearch.org/learn/wiki/en/St_Thomas_Ontario_Family_History_Centre
Stratford
https://familysearch.org/learn/wiki/en/Stratford_Ontario_Family_History_Centre
Waterloo
https://familysearch.org/learn/wiki/en/Waterloo_Ontario_Family_History_Centre
Woodstock
https://familysearch.org/learn/wiki/en/Woodstock_Ontario_Family_History_Centre
Ontario Genealogical Society
Elgin County Branch of the OGS
http://www.elginogs.ca
Essex County Branch OGS
https://essex.ogs.on.ca
Huron County Branch OGS
http://www.hurontel.on.ca
Lambton County Branch OGS
www.ogs.on.ca/lambton
London Middlesex OGS
https://londonmiddlesex.ogs.on.ca/
OGS Oxford
http://www.ogs.on.ca/oxford/
Southwest Ontario Heritage Calendar – OGS
http://www.ogs.on.ca/londonmiddlesex/calendar.html