Sonja Morawetz Sinclair

Sonja Morawetz Sinclair (December 3, 1921 – May 23, 2024) was a Czechoslovak-born Canadian journalist, author, and cryptographer. From the 1950s to the 1990s she worked independently for major Canadian publications including ''Time'', Canadian Broadcasting Corporation, ''Maclean's'', ''Chatelaine'', ''Canadian Business'', ''Financial Post'', authored four books and worked as director of communication for Price Waterhouse. In June 2017 she was honoured by the British government for her service as a World War II codebreaker for an Ottawa branch of Bletchley Park signals intelligence between 1943 and 1945. She kept her wartime intelligence service secret from her closest family and friends for over seven decades. Provided by Wikipedia