
British Special Operations Executive agent (1903–1983)
Mary Katherine Herbert (* 1. October 1903 in Chepstow; † 23. January 1983 in Frant) was a british Special Operations Executive agent. She was 79 years old. She was married to Claude de Baissac. Her education included University of London, Slade School of Fine Art and Cairo University. Her cause of death was pneumonia.