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Julia Parsons: Celebrated Code Breaker from WWII Passes Away at 104

Honoring the legacy of a pioneering woman in cryptography who changed the course of history.

By Michael S. RosenwaldSource: nytimes.com1 min read

In brief

Julia Parsons, a vital member of America’s WWII code-breaking team, died peacefully at the age of 104, leaving a legacy of secrecy and ingenuity.

In a poignant reminder of the unsung heroines of history, Julia Parsons, a former U.S. Navy code breaker during World War II, passed away on April 18 in Aspinwall, Pennsylvania, at the impressive age of 104. Her daughter, Margaret Breines, confirmed her death at a Veterans Affairs hospice, marking the end of an era for one of the last members of a clandestine team that operated under the veil of secrecy during the war.Born Julia Potter in Pittsburgh during the Great Depression, she exhibited a natural affinity for puzzles and crosswords from an early age. During the war, Parsons played a critical role in deciphering complex German military communications generated by the infamous Enigma machine, which was believed to be impervious to code-breaking efforts. Her expertise contributed significantly to the Allied forces' ability to outmaneuver, attack, and ultimately decimate German U-boats.The Germans, confident in the encryption power of their Enigma machines, underestimated the capabilities of Parsons and her colleagues. “They were convinced their codes were unbreakable,” noted Thomas Perera, an expert and collector of Enigma machines. “They were sending precise coordinates of their locations daily.”The effort to crack the Enigma cipher dates back to the late 1930s, when Polish mathematicians collaborated with French intelligence to decode encrypted messages. This groundbreaking revelation was pivotal for the British, who refined the Bombe—an early computer-like invention designed to break complex codes. In 1941, the capture of a German submarine equipped with an Enigma machine enabled the British mathematician Alan Turing, working covertly with U.K. intelligence, to devise a strategy that would assist even allied forces like the U.S. Navy in mastering the codes.As the world remembers her pioneering work that was initially shrouded in secrecy, the story of Julia Parsons serves as a testament to the often-overlooked contributions of women in wartime efforts. From her days as a delightfully clever girl in Pittsburgh to a formidable code breaker, Parsons exemplified resilience, intelligence, and ingenuity in a time of global conflict.

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