Going through Senior's stuff, an old handwritten note in pencil on a bit of exercise book paper, looks like they were scribbled down during a couple of railway journeys, way back in the 1930s......
"Points replaced by GS at bridge beyond Maynooth
Coach 2115 seen, wagon 23062 9001
Saw 378 at Donamon, saw 375 at Athlone
628 350 176"
Another note tracks a car journey, with timings given at Lusk, an AA Box, Swords, Cloghran etc, all the way from Rush, in north Co. Dublin, to Ballsbridge. The journey took fifty minutes "via Butt Bridge and South Wall". There was no port tunnel then - nor was there much traffic! Even so, that was fairly getting a move on, given the way the roads were then.... Any retired gardai reading this, avert your eyes....