This morning I was going though Colin Chapman's notes on the B&MR and noted the following on page 129 of file CN.pdf that is attributed to the Directors' Minute Book 1912-1922 PRO RAIL 65.10 So it appears the service was not a success.Penrhos1920 wrote:
According to Kidner The Rhymney Rly, p.40 there was a GWR service from 21st August 1920 Newport, Penrhos, Pontypridd, Carmarthen, etc. running over 6 railway companies lines in addition to their own.
In WRA vol.III,p.38 also mentions this train. P.72 discusses what happened in 1920. It also has ‘Through tourist service ‘ via the same route.
I regret that I do not have the WRA's you refer to, only Harold Morgan's "THROUGH COACH WORKING FROM SOUTH WALES TO ABERYSTWYTH.doc". I'll try to look at the WRA's on Tuesday.
Interestingly Colin's notes on the B&MR record the start of the RR motor services between Caerphilly and Machen but I didn't spot anything on the intermediate halts nor any changes to the service. Perhaps there's something in Colin's notes on the Rhymney Railway that I hope to start reading tomorrow. The B&MR directors' minutes did record the extension of the ADR service to Machen in 1917.