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Debosnys claimed that his cipher was in common use in Europe, but so far I haven't found any evidence to support that. Many books were p...

I found a much clearer image of the passenger manifest from the arrival of the Cimbria at New York on July 3, 1871, courtesy of  FamilySearc...

In his autobiography, Debosnys claimed that, after the Franco-Prussian war and the events of the Paris commune, he "returned to Paris a...

Here is another name to research: Delpech. Apparently a citizen named Louis Delpech, prefect of Bouches-du-Rhône, formed one of several co...

Debosnys claimed to be living under a pseudonym. Resolving the question of his true name could help solve the cipher, because one of the pas...

I just bought Farnsworth's Adirondack Enigma , so I've had a chance to read a bit more about Debosnys. One page in Adirondack Enig...

The Greek text on the opposite side of the page from the cipher poem (as I mentioned) is largely the first part of an ode written by Thomas ...