In a prior post you mentioned memoirs from Welch Fusiliers. With the German Guns by Herbert Sulzbach is also a rather genteel WWI memoir. For an interesting German counterpoint to Graves, Sulzbach, Sasson et.al., you might take a peek at Ernest Junger's Storm of Steel
BTW Sulzbach also served in the British Army, eventually getting a commission during WWII.
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