Great video! So much in it. We were still having milk collected in churns hear in cornwall back in 1970. I was only eight then, cows had to be milked early and churns out on the stand so you didn’t miss the lorry! Everyone had what looked like a sack trolly to move churns around the yard, you can still see some of the old churn stands at end of farm lanes today. Great footage of flying Scotsman 👌
See in the photo your grandfather has one of those leather cartridge case straps over his shoulder, the men that served on the big howitzer guns wore them. I have photo of my grandfather with one on. May be your grandfather was on the guns first.