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OGS Branches


We have 33 Branches and Special Interest Groups (SIGs) across the province of Ontario. Joining one or more branches is a great way to get to know your fellow genealogists and to focus your research on a specific region or heritage topic.

Visit our Branch/SIG websites to learn more:

OGS Branches and SIGs

Brant County (Region IV)
British Home Child SIG
Bruce & Grey County (Region III)
Durham Region (Region VII)
Elgin County (Region II)
Essex County (Region I)
Haldimand County - inactive branch
  (Region IV)
Halton-Peel (Region V)
Hamilton (Wentworth County) (Region IV)
Huron County (Region III)
Ireland SIG
Irish Palatine SIG
Kawartha (Haliburton, Peterborough, Northumberland and Victoria Counties) (Region VII)
Kent County (Region I)
Kingston (Frontenac, Lennox and Addington Counties) (Region VIII)
Lambton County (Region I)
Leeds & Grenville (Region VIII)
London & Middlesex County (Region II)
Niagara Peninsula (Lincoln and Welland Counties) (Region IV)

Nipissing District (Nipissing, Parry Sound & Temiskaming Districts) (Region IX)
Norfolk County (Region IV)
Ottawa (Carleton, Lanark, Renfrew, Russell [Russell-Prescott] Counties) (Region VIII)
Oxford County (Region II)
Perth County (Region III)
Quinte (Prince Edward, Hastings & part of Northumberland Counties) (Region VII)
Sault Ste. Marie & District of Algoma (Region X)
Scottish SIG
Simcoe County (Region V)
Sudbury District (Region IX)
Thunder Bay (Districts of Thunder Bay, Kenora & Rainy River) (Region XI)
Toronto (Region V)
Waterloo Region (Region III)
Wellington County (Region III)
York Region (former York County excluding Toronto) (Region V)

Find out how to join an OGS Branch now.

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