And here is one last note to his mother:
On the eve of the battle of Ypres I was indebted to you for a letter which said "take good care of my son Jack, but I would not have you unmindful that, sometimes, when we save we lose." I have that last happy phrase to thank. Often when I had to go out over the areas that were being shelled, it came into my mind. I would shoulder the box, and "go to it".