One a blog about storyboarding, it is a great oversight not to have mentioned Bill Peet earlier. Bill Peet was the greatest Disney storyboard artist ever, and would be virtually unknown if he hadn't left the studio to draw children's books during the 1960's. You can read all about his life in "Bill Peet: An Autobiography."
The world is very fortunate that Bill left the studio when he did. The quality of Disney films declined as a result (in my opinion) but he wrote and illustrated many great books for children. His amazing talent isn't hidden away in the Disney morgue, it is readily accessible for anyone who wants to experience it. If you want to learn about drawing, get these books (they are incredibly cheap for how great they are) and just look at what he does. Believe it or not I have known a couple of people in the animation business who said they didn't think Bill could draw very well. I think they were put off by the simplicity of his drawings and they didn't understand just how much knowledge went into each line that he drew, how he was communicating so much with so little effort, and just how sophisticated the palette of his quick little pastel drawings were.
Of course, there were other great Disney board artists, most of whom are unknown to the public. I will do my beat to rectify that and introduce you to their work, if you haven't seen it already.
But nobody ever did (or will) touch what Bill could do.