Can it be solved anyway?
Even if the Beale cryptograms will never lead to a hidden treasure, there is still a chance that they can be broken. However, so far nobody has found a solution. Back in 1980 Jim Gillogly, who is now a reader of this blog, found out that if the Declaration of Independence is used as a key for the first cryptogram, it yields alphabetical sequences such as “abcdefghiijklmmnohpp” and others. There are different explanations for this obeservation, however, the most likely one is that this cryptogram only contains meaningless gibberish.
If you have additional ideas on how to decipher the Beale cryptograms #1 and #3, please let me know. And if you ever happen to find the Beale treasure, please send me a few photographs for a blog article.
Further reading: An unsolved cryptogram from 1834