2013
Joan Thirsk, English cryptologist, historian, and academic (born 1922)
Joan Thirsk, English cryptologist, historian, and academic (born 1922)
Joan Thirsk, English cryptologist, historian, and academic (born 1922)
Historian and cryptanalyst (1922–2013)
Joan Thirsk, English cryptologist, historian, and academic (born 1922)
Joan Thirsk, English cryptologist, historian, and academic (born 1922)