One of my WWI 'heroes' is Wilfred Jesson; local Southampton lad, rugby player and cricketer (played against Ranji at Lord's). Like one of my other lads, Wilfred Owen, Jesson was hardly any taller than I am, and he features in one of the best (IMHO) books about the war, Stephen Cooper's The Final Whistle. As I was doing some further research on Jesson, I discovered this from the Sherborne old boys, which details a number of those who feature on the school's roll of honour. His private papers are listed on the Imperial War Museum site.
BTW I love connections; Sherborne was Turing's school and the writer of the flyer has links to the local Remount depot.