You missed to publish the important bit for a forum:
Today we are confronted with a difficulty named TIME! The men who survived (they must be aged between 75 and 95) are very hard to find via internet (we tried!). As the official (mostly British) authorities still deny the existence of the droppings (war is not a game, it's an urban legend, etc.) we eventually decided to explore another possibility.
As we notice that most of the testimonies are American, a basic idea started growing. Couldn’t this typically peculiar sense of British humour not simply be an example of AMERICAN sense of humour? This would explain lots of things and is the reason why we try to contact pilots or members of the American Forces stationed in Europe during WW2 who could have been involved in the dropping of these wooden bombs.
Rattler