kernowbususer
Member
The potted history...
Up until the formation of First Bus, services across the Tamar were provided by Western National. This was the case into First days with outbases at Callington, sub depot at Torpoint and running from the main Plymouth depot.
As First progressed (if you can say that), services around Looe and Liskeard (and later Callington?) passed to Western Greyhound who had a depot at Liskeard. In advance of the collapse of WG, this depot was sold to Plymouth Citybus. PCB was engaged in the third Plymouth bus war at this point, and had extended to competing to Torpoint etc against First. On the sale of First's Plymouth depot to Stagecoach, the Torpoint routes were ceded to PCB as part of a peace deal but Stagecoach continued operating to Saltash.
Think that's roughly it.
South East Cormwall services passed through Liskeard & District Omnibus Company and DAC Coaches operation before Western Greyhound.