This is a very long audio recording of the reminiscences of Eric Potten. Eric featured briefly in the TV documentary Tanks: Wonder Weapons of World War One? This is a far longer version of his service, with lots of stuff about the Tanks. You have to hunt for the relevant bits because the total length is over three hours, but there's a summary to give a bit of help.
"Sometimes things that are not true are included in Wikipedia. While at first glance that may appear like a very great problem for Wikipedia, in reality is it not. In fact, it's a good thing." - Wikipedia.