Don't know anything about this organisation, but they are staging a conference sort of thing later this year:
http://www.warjaw.co.uk/not-just-digging-trenches-archaeology-of-the-first-world-war.php
"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.