However, the saw above gives Halton Hills (Acton) as a factory location. As Halton Hills was not established until 1974 through the amalgamation of the former Towns of Georgetown and Acton, it would appear that Disston's presence in Canada continued for several decades after the 1950's.
Disston was purchased by H.K. Porter in 1955, and the coping saw package below demonstrates that Disston had a facility in Acton at least that far back.
Below, a Disston Canada No. 388 hacksaw: