Mooretown in Lambton County, Ontario — Central Canada (North America)
St. Clair Township’s Family Tree
St. George’s Square Commemorative Park
Photographed by Tim Boyd, May 11, 2025
1. St. Clair Township’s Family Tree Marker
Inscription.
St. Clair Township’s Family Tree. St. George’s Square Commemorative Park. This park located in Mooretown has been set aside to commemorate Canada's 150th anniversary (1867-2017). St. Clair Township is named for the St. Clair River which forms its western boundary. Lake St. Clair (Lac Sainte-Clair) and the St. Clair River were named after St. Claire of Assisi by French explorer, René-Robert Cavalier de La Salle. He arrived on the lake on her feast day, Aug. 12, 1679. Prior to 1829, St. Clair District or Township was the unorganized northern part of the Western District. The Western District was comprised of two counties - namely, Essex and Kent (which included the area that would later become Lambton County). These boundaries remained until 1849 when the Western District became known as the United Counties of Essex, Kent and Lambton. In 1852, Lambton County began functioning as a provisional county under the jurisdiction of Essex County. In 1853, it began operating as an independent county. Southwards from Lake Huron, the riverfront townships of Lambton County were Sarnia, Moore and Sombra. The boundaries of these townships remained mostly unchanged from 1849 until 2000. On Jan. 1, 2001, Moore and Sombra Townships amalgamated to form St. Clair Township.
This park located in Mooretown has been set aside to commemorate Canada's 150th anniversary (1867-2017). St. Clair Township is named for the St. Clair River which forms its western boundary. Lake St. Clair (Lac Sainte-Clair) and the St. Clair River were named after St. Claire of Assisi by French explorer, René-Robert Cavalier de La Salle. He arrived on the lake on her feast day, Aug. 12, 1679. Prior to 1829, St. Clair District or Township was the unorganized northern part of the Western District. The Western District was comprised of two counties - namely, Essex and Kent (which included the area that would later become Lambton County). These boundaries remained until 1849 when the Western District became known as the United Counties of Essex, Kent and Lambton. In 1852, Lambton County began functioning as a provisional county under the jurisdiction of Essex County. In 1853, it began operating as an independent county. Southwards from Lake Huron, the riverfront townships of Lambton County were Sarnia, Moore and Sombra. The boundaries of these townships remained mostly unchanged from 1849 until 2000. On Jan. 1, 2001, Moore
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and Sombra Townships amalgamated to form St. Clair Township.
Erected 2017 by heritage St. Clair.
Topics. This historical marker is listed in this topic list: Political Subdivisions. A significant historical date for this entry is January 1, 2001.
Location. 42° 50.556′ N, 82° 27.824′ W. Marker is in Mooretown, Ontario, in Lambton County. It is at the intersection of Emily Street and Victoria Street, on the left when traveling north on Emily Street. The marker is in front of the St.Clair Township Civic Centre. Touch for map. Marker is at or near this postal address: 1157 Emily St, Mooretown ON N0N 1M0, Canada. Touch for directions.
Regionally, this marker is in the Southwest Ontario Area and in Southwestern Ontario. It is also in Central Canada. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once a British colony, the Viceroyalty of New France, the Haudenosaunee (Iroquois) Confederacy, and Rupert’s Land.
Other nearby markers. At least 8 other markers are within 3 kilometers of this marker, measured as the crow flies: The Early Riverfront Townships
Credits. This page was last revised on May 15, 2025. It was originally submitted on May 15, 2025, by Tim Boyd of Hamilton, Ontario. This page has been viewed 119 times since then and 21 times this year. Photos:1, 2, 3, 4. submitted on May 15, 2025, by Tim Boyd of Hamilton, Ontario. • Andrew Ruppenstein was the editor who published this page.