Arthur Roger Thatcher CB (22 October 1926 – 13 February 2010), commonly known as Roger Thatcher or sometimes as A. Roger Thatcher, was a British statistician. Thatcher was born in Birmingham and spent his formative early years in Wilmslow, Cheshire. He attended The Leys School in Cambridge and went on to university at St John's College, Cambridge, where he concentrated his studies in statistics, economics, and mathematics. After brief training in meteorology as part of his national service, he instructed Royal Navy pilots in weather patterns. He married his wife Mary in 1950; they had two children.