The Art of Tetman Callis

“In the navy she [Agnes Meyer Driscoll] was without peer as a cryptanalyst. Some of her pupils, like Ham Wright, were more able mathematicians but she had taught cryptanalysis to all of them, and none ever questioned her superb talent and determination in breaking codes and ciphers. She understood machines and how to apply them. . . . But her principal talent was her ability to get to the root of a problem, sort out its essential components, and find a way to solve it.” – Rear Admiral Edwin T. Layton, U.S.N. (Ret.), And I Was There