The city developed at the deepest navigable point of the Grand River. Because of existing networks, it became a railroad hub of Southern Ontario. The combination of water and rail helped Brantford develop from a farming community into an industrial city with many blue-collar jobs, based on the agriculture implement industry. Major companies included S.C. Johnson Wax, Massey-Harris, Verity Plow, and the Cockshutt Plow Company. This industry, more than any other, provided the well-paying and steady employment that allowed Brantford to sustain economic growth through most of the 20th century.