Mary Cannell
Doris Mary Cannell (19 July 1913 – 18 April 2000) was an English educator and historian of early 19th century mathematical physics, in particular of George Green. Early life Cannell was educated in Liverpool, with a scholarship to the selective private Merchant Taylors' School for Girls followed by BA from University of Liverpool in French with History subsidiary. She then gained a Postgraduate Diploma in Education and held teaching posts in the UK and France. Career During World War II she lectured to troops and this changed the direction of her career into higher education and the training of teachers. In 1960 she was appointed the deputy principal of the new Nottingham College of Education. In 1974, as acting principal, she led the formation of what became Nottingham Trent University, bringing together her college, Trent Polytechnic and other educational institutions in Nottingham. Research After her retirement in the 1970s, she again changed direction to become a respected historian of mathematics. Her major achievement was rediscovering the importance of George Green in the development of nineteenth century applied physics. He had initially worked as a miller near Nottingham and although his mathematical discoveries were known and used worldwide, very little was