A few quick comments. As has been noted, this Wikipedia article contains many images that are completely unlike anything else available in an online encyclopedia-type work.  The same is true of images in many other Wikipedia articles (including this one).  If we are to disregard newspapers (because they're apt to sensationalize), and only focus on online ecyclopedia-type references, the choices are very limited.  I'm not aware that it's even possible to do an image search in Google Books.  Anyway, here are a couple more refs for you to munch on: .  I think the main focus here should be on whether the proposed image is verifiable, neutral, and informative.