Code Girls: The Untold Story of the American Women Code Breakers of World War II

by Liza Mundy

Dot Braden

John Manly,

Genevieve Hitt

William Friedman

Elizebeth Friedman

Agnes Meyer,

Agnes Meyer got her start making codes, which is the best possible training for learning how to break them.

code, in which an entire word or phrase is replaced by another word, a series of letters, or a string of numbers, known as a “code group.”

cipher, in which a single letter—or number—is replaced by another single letter or number.

Agnes Meyer Driscoll.

that

Joseph Wenger

John Redman,

White Russians.

was part