It's only been a month or so since Mark died, and it seems like longer. Corona-time, I suppose.

I did not know him well, but he was always kind to me, even before I went to York. He visited Columbia some time after I graduated and had been accepted to York, and gave he some good advice on where to look for lodging near York.

His work speaks for itself. The bio below is from the University of York.

https://www.york.ac.uk/history/staff/emeritus-honorary/ormrod/