Collections in Cryptology - Rowlett Papers

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Collections in Cryptology - Rowlett Papers Key figures in computation... Several hundred cryptanalytic worksheets dated 1930-31.
Tributes Emory and Henry College NSA Hall of Honor New York Times Obituary Technical Intelligence Bulletin		Frank Byron Rowlett 2 May 1908 - 29 June 1998 Married to Edith Jean King 13 September 1928. Hired by William F. Friedman in 1930 after Friedman was appointed Director of the Army Signal Intelligence Service on May 10, 1929. Also hired were his mathematician friends Solomon Kullback and Abraham Sinkov.
Watermark on many worksheets.		Watermark on many worksheets.
Lt. Laurance F. Safford Director of Navy Radio Intelligence. Rubber-stamped signature.
		There are only three dated Rowlett papers.



		Names, words and doodles, including Edith Rowett, Zanatti, Frank, John, is, this, count and attic. Calligraphy practice? Daydreaming?
Sketch of the watermark.		Who?
Man with sombrero, appropriately on a Spanish language cryptanalytic worksheet.		An imaginary landscape or a view from the office?
		Two of dozens of completed "Cryptographic Sheets," mostly in English but at least one each in German, French and Spanish.