Grantham and eminent past students. Britain's first female Prime Minister, Margaret Thatcher, attended Kesteven and Grantham, and Isaac Newton famously attended The King's. Both have remained single-sex up to the age of 16. In 1970, Kesteven County Council (based in Sleaford) announced plans to turn the grammar schools into co-educational comprehensives for ages of 11–16 and leave Grantham College the only sixth form for the town. Later it was proposed to create two sixth-form colleges from one of the grammar schools. Other parts of Kesteven became comprehensive but responsibility for education passed to Lincolnshire under the local government reorganization of 1974,
Stamford and Spalding (UK Parliament constituency) Crowland, Deeping St Nicholas, Gosberton Village, Pinchbeck East, Pinchbeck West, Spalding Central, Spalding East, Spalding North, Spalding South, Spalding West, Surlfeet, and Weston. Stamford and Spalding (UK Parliament constituency) Stamford and Spalding was a county constituency in Lincolnshire, which returned one Member of Parliament (MP) to the House of Commons of the Parliament of the United Kingdom. The constituency was created for the 1983 general election, and abolished for the 1997 general election. The District of South Kesteven wards of All Saints, Aveland, Bourne East, Bourne West, Casewick, Deeping St James, Devon, Forest, Glen Eden, Hillsides, Isaac Newton, Lincrest, Market