Tag Archives: cryptanalysis

16 August 1861: “At the suggestion of Genl. Longstreet I enclose herewith a cypher found on the battle field of the 21st.”

Item description: Letter, 16 August 1861, from William Mumford, Lt. Col., 17th Regiment, to Edward Porter Alexander, enclosing a captured “cypher” letter. According to Mumford, the letter was found on the battlefield at First Bull Run (First Manassas), the author … Continue reading

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5 August 1861: “I have deciphered & read two letters that were brought in, but am stuck on a note book picked up on the field of battle…it was written by a confoundedly smart fellow.”

Item description: Letter, 5 August 1861, from Edward Porter Alexander to his wife in which Alexander describes some of the cryptanalysis that he has been doing for the Confederate Army. Item citation: From folder 8 of the Edward Porter Alexander … Continue reading

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