London & Middlesex Branch of Ontario Ancestors [1]
Resources, publications and links for genealogical research for the city of London and Middlesex County, Ontario.

Ontario Ancestors (formerly Ontario Genealogical Society (OGS) [2]
Major Ontario organization established to help people research their family history.

Brant County Branch of Ontario Ancestors [3]
Resources, publications and links for genealogical research for the city of Brantford and Brant County, Ontario.

Bruce and Grey Branch of Ontario Ancestors [4]
Resources, publications and links for genealogical research for the city of Owen Sound and Bruce and Grey counties, Ontario.

Elgin County Branch of Ontario Ancestors [5]
Resources, publications and links for genealogical research for the city of St. Thomas and Elgin County, Ontario.

Essex County Branch of Ontario Ancestors [6]
Resources, publications and links for genealogical research for the city of Windsor and Essex County, Ontario.

Huron County Branch of Ontario Ancestors [7]
Resources, publications and links for genealogical research in Huron County, Ontario.

Kent County Branch of Ontario Ancestors [8]
Resources, publications and links for genealogical research for the city of Chatham and Kent County, Ontario.

Lambton County Branch of Ontario Ancestors [9]
Resources, publications and links for genealogical research for the city of Sarnia and Lambton County, Ontario.

Oxford County Branch of Ontario Ancestors [10]
Resources, publications and links for genealogical research for the city of Woodstock and Oxford County, Ontario.

Perth County Branch of Ontario Ancestors [11]
Resources, publications and links for genealogical research for the city of Stratford and Perth County, Ontario.

Waterloo Region Branch of Ontario Ancestors [12]
Resources, publications and links for genealogical research for the cities of Cambridge, Kitchener and Waterloo and the Region of Waterloo, Ontario.

Wellington County Branch of Ontario Ancestors [13]
Resources, publications and links for genealogical research for the city of Guelph and Wellington County, Ontatio.