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Branches

We have 34 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
British Home Child SIG
Bruce & Grey County
Durham Region
Elgin County
Essex County
Halton-Peel
Haldimand County (inactive)
Hamilton (Wentworth County)
Huron County
Ireland SIG
Irish Palatine SIG
Kawartha (Haliburton, Peterborough, Northumberland, Victoria Counties)
Kent County
Kingston (Frontenac, Lennox and Addington Counties)
Lambton County
Leeds & Grenville
London & Middlesex County
Niagara Peninsula (Lincoln and Welland Counties)

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

Find out how to join an OGS Branch now.