All spelling is difficult at 4am (the timestamp lies to me...) If you want to talk about discredible sources, I wouldn't be using wikipedia in an argument, as half the information on it is false or skewed. Of course there is no written evidence, it was slang and therefore it can't be expected to have evidence. Also, I know the above is correct as my great uncle was IN WWII in the navy. He told me the story himself when I asked him why he would call the stuff duck tape. Besides, I'm pretty sure that the article just restates part of what I say in my above argument. The term is just a case of mistaken identity. Nice line of work, by the way. :)