Also in easier to read format: <a href="https://sites.google.com/site/michaeldgodfrey/vonneumann/vnedvac.pdf" rel="nofollow">https://sites.google.com/site/michaeldgodfrey/vonneumann/vne...</a>
This report is commonly referred to just as "The First Draft Report", and was widely distributed enough in its 'first draft' form to constitute as a publication in a later patent dispute (that is to say that one of the reasons the patents were invalidated was because they were filed over a year after this report got distributed).