In 1942, the (miraculously still surviving after being spit out by the CN as unsalvageable) Toronto Suburban Railway needed to get more freight motors to deal with the upturn in traffic as North America went to war production, and ended up ordering a small batch of motors from CC&F.

The 4 300s (301-304, renumbered to 1067-1070 after joining the PV&T system; the TSR originally had a single boxcab numbered 300, but that was transferred to CN ownership and left the property when CN defaulted on the bond payments in 1932) were fairly tiny units, but were enough to move most of the freight on the property up to the 1973 merger with the Hamilton & Bradford, when they were joined by the H&B’s Baldwin steeplecabs (which had been replaced by ex-Niagara Junction E10Bs & a single ex-PV&T class A motor).

All four of them remain in service on the TSR.