A. M. Beatson

A. M. Beatson is known as the author of The Motor-bus in War, a book presented as the impressions of an A.S.C. officer who spent two and a half years at the front. From the title and published descriptions that can be confirmed, Beatson wrote from direct experience of wartime transport rather than from a distant historical perspective.

That gives the book much of its appeal today. Instead of focusing only on strategy or famous battles, Beatson paid attention to the movement of men, vehicles, and supplies, showing how everyday transport work became essential to the larger war effort.

Reliable biographical details about Beatson appear to be scarce in the sources I could confirm, so it is safest to read this author mainly through the surviving work itself: a practical, observant voice writing about the realities of service, machinery, and logistics during World War I.