Grenville County was united with Leeds County to form the United Counties of Leeds and Grenville. Original townships The five remaining townships at 1838 were Augusta, Edwardsburgh, Oxford-on-Rideau, South Gower, and Wolford. Augusta township (still exists), covers an area of . It was first surveyed in 1783, and was named in honour of Princess Augusta Sophia, second daughter and sixth child of George III. This township is located along the southern border of Leeds and Grenville along the St. Lawrence River. Edwardsburgh township (now Edwardsburgh/Cardinal), covers an area of . The township was first surveyed in 1783, and was named in honour of Prince Edward, fourth son and fifth child of George III. This township is located along the southern border of Leeds and Grenville along the St. Lawrence River, east of Augusta township. Oxford-on-Rideau township (Now part of North Grenville), covered an area of and was first surveyed in 1791. The township was later amalgamated in the 1990s with South Gower township and the town of Kemptville to become North Grenville. This township was located north of both Edwardsburgh and Augusta townships, between Wolford and South Gower. South Gower township (Now part of North Grenville), covered an area of and was first surveyed in 1799. This township was located north of Edwardsburgh. Wolford township (now the village-status municipality of Merrickville-Wolford) covered an area of and was first surveyed in 1795. It was named for the Devonshire seat of John Graves Simcoe. This township was located west of Oxford-on-Rideau, and north of Augusta. In the 1990s, Wolford township became known as its own municipality, and was renamed Merrickville–Wolford. See also List of Ontario census divisions List of townships in Ontario Augusta Township Edwardsburgh/Cardinal Township North Grenville Township Leeds and Grenville County Johnstown, Ontario Spencerville, Ontario Maitland, Ontario North Augusta, Ontario Prescott, Ontario Kemptville, Ontario Merrickville–Wolford, Ontario Upper Canada References External links 1951 map of Grenville County Former counties in Ontario