AND! Thomas Jefferson was a member of the OLD French Rosicrucian Order, while he was serving in France; PROBABLY learned their OLD R+C Ciphers Codes & USED them!
You know since Uncle Sam is very interested in the Beale Treasure. Some how I believe that Thomas Jefferson made up the cipher codes to conceal something that the US Government is very interested in mainly either the Bruton Vault Artifacts or the Ark of the Covenant? Thus Thomas Jefferson Beale.
AND! There is a web-site that has Thomas Jefferson's Rosicrucian Ciphers "doodlings" (from France); just "google" Thomas Jefferson's Rosicrucian "doodlings"; it is also in SECRET DESTINY by Hieronimus.