March 18, 1966, Memo to Waters from Rainville With Shoup Voting Machine BookletMarch 18, 1966Shoup Voting Machine CorporationRainville, Haroldhttps://creativecommons.org/publicdomain/mark/1.0/enghttp://congressarchives.org/record/EMD_Working_Papers-f284-1966_03_18Memorandum From Rainville To Waters With Booklet Titled "protect Your Voting Rights" Created By The Shoup Voting Machine To Get American Citizens To Vote Electronically Rather Than With Paper Ballots.