William Robert Granville Mills was my father's cousin and I came across his story when I was researching the family tree. I was astonished that young men aged just 18 or 19 were Second Lieutenants and leading battalions of regular soldiers and conscripts. I was on holiday in Belgium a few years ago and we stayed for a day in Ypres and I visited the Railway Dugouts Graveyard and took a picture of his gravestone. You have provided me with even more information about William. His grandfather was William Yarnton Mills who was the Rector of Miserden in Gloucestershire which is the ancestral home of the Mills family and Miserden Church is full of plaques to members of the family.
Mike Mills