Complex sentence: Mary Katherine Herbert (also known as Maureen) (b. October 1,1903, Ireland-d. January 23,1983) was was a member of the Special Operations Executive (SOE) during World War II and worked as a courier for the French Section.
Split into simpler sentences: Mary Katherine Herbert (b. October 1,1903, Ireland-d. January 23,1983) was a World War II spy. M K Herbert was a member of the Special Operations Executive (SOE) during World War II and worked as a courier for the French Section.