After looking up "Great War" and "Chinese wheelbarrow" on the web, I discovered 39 interesting facts about the "great wall" but not a great deal about wheelbarrow use in WW1. Seriously though, the use of the large-diameter-wheeled barrow seems a good fit with the terrain behind the front line. Can we assume they were used to cart "ammunition and other stuff" to and from the front, as opposed to supplying heavy artillery units which were usually miles back from the front and often within reach of roads and narrow gauge railways. Having studied Australia's siege brigades over many years I have never come across mention of wheelbarrows or their use. I would be very interested to know of references to their use by any heavy artillery. Robert