In 1924 the federal electoral district of Grenville was abolished when the county's riding was amalgamated with that of Dundas to become a new district known as Grenville-Dundas. In 1925 a federal election was held to determine who would be the first representative for the new electoral district in the House of Commons.
In 1924, the federal electoral district of Grenville was abolished as part of a consolidation with Dundas's constituency to create Grenville-Dundas. In 1925, an election occurred to determine who would represent the new electoral district in Parliament.