Calthrop...your idea for a thread and my original response in which I made mention of my father's journey between his home station (Dinas) and Oxford has prompted me to look a little more closely at the dozen journeys that he made between the two in 1936 and 1937. Quite fascinating, in that he never made the same journey twice, either changing his route or changing trains at different stations en route. I suppose that he must have purchased a timetable and worked out how he was to do this, but unfortunately those timetables haven't survived.
All his journeys involved passing through Chester, having changed at Bangor and Llandudno Junction - interesting in itself, as I would have thought that he could have caught a through train from Bangor to Chester or Crewe, or perhaps the times were convenient to do it this way. Only once did he catch a through train from Oxford to Chester (would that have been a South Coast (Poole) -Birkenhead working?). His notes also show a very interesting variety of motive power, sadly lacking if any student considered a similar venture today! If you are interested, I can provide some more detail, there are one or two questions that I would like to have answers to if anyone has access to a timetable of the period.