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• P.L. Robertson Manufacturing Company, The
  The first firm in the world to produce socket-head screws, the P.L. Robertson Manufacturing Company was formed in Hamilton in 1907 and relocated here the following year. It was established by an Ontario inventor Peter Lymburner Robertson and, using an ingenious process he had developed to punch square holes into cold metal, it manufactured the innovative new screw for industrial markets. In its first two decades the company steadily expanded operations. By 1930, when the...

• Toronto's Radial Railways
  Electric railway service on routes radiating from Toronto began in 1889. Within 20 years, the Toronto and York Radial Railway Company operated lines north on Yonge Street to Sutton, with a branch to Schomberg; from the east end of Toronto to West Hill; and from Sunnyside to Port Credit. In 1917, the Toronto Suburban Railway Company completed its line from west Toronto to Guelph; it also had a route to Woodbridge. These companies operated about...