New light on codebreaking couple.

Maj. William F. Friedman explains
ciphering machine to Louise Newkirk
16 Aug 1930. Library of Congress
Prints & Photographs Div.

The NSA has declassified 7000 records of William F. Friedman (1891–1969), a U.S. cryptology pioneer inspired by Edgar Allan Poe, and his wife Elizebeth (1892–1980), also a noted codebreaker. This initiative coincides with exhibitions on the Friedmans by the Marshall Foundation and the National Cryptological Museum.

Listen to Friedman's lecture on the Shakespeare ciphers and his 1960 talk about historical efforts in codebreaking  (part 1, part 2, part 3).