Yup my Grandfather was 14yrs old when he signed up for the 36th Ulster Division and was seen to be a good horse man during his training at Donard Camp in Newcastle. That is when General Crozier made him his "Batman".
Many years later on his return (one of the very few) from the Somme he wrote a book that's yet to be published, I have it here, must dig it out.
It was a horrid war. So many men lost their lives due to the ineptitude and snobby elitism of British leadership and tacticians of the time. The 36th made some of the biggest advances during the Somme because they defied British orders of a creeping advance. And then ended up being bombarded by British artillery which caused the majority of their casualties because of their defiance. If more units had performed as well as the 16th and 36th the war might have been over sooner. But because of the creeping advance orders, entire units in the British army were wiped out and ground was never taken quickly. Truly sad.