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,
Nicholas Thatcher Nicholas Thatcher Nicholas Thatcher is Professor of Oncology at the University of Manchester, in the School of Cancer and Imaging Sciences at the Christie Hospital NHS Trust and Wythenshawe Hospital; he was appointed to the position of Professor in 1996. He received his PhD from Manchester University, after prior education at the University of Cambridge and St Bartholomew’s Hospital Medical College, London His specialty is clinical and translational research in renal cell cancer, melanoma and lung cancer. He was investigator in key clinical trials dealing with chemotherapy methods and dosages in small cell lung cancer and non-small cell lung cancer.