Was all handled pretty well, I think.
JamieL was on 1S72 14:30 Euston-Glasgow, went slow line to Bourne End, 23 minutes late after there, 16 late into Glasgow.
My partner was on the way back from a day trip to the US Embassy (replacement passport will be posted in due course) on 1H70 15:33 Euston-Wilmslow-Manchester, slow line to Ledburn Junction, 35 minutes late into Wilmslow, 34 minutes late into Manchester.
1F28 15:43 Euston-Liverpool went fast line, overtook 1H70, but was still held up by congestion, 8 minutes late into Liverpool.
Obviously all the delays will add up for people who count and care for these things.
But no big deal, I get 50% of the single fare back for my partner's journey.