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,
Richard Hely-Hutchinson, 8th Earl of Donoughmore Winchester, Groton School (Massachusetts) and at New College, Oxford graduating with a medical degree and later gained the rank of Captain in the service of the Royal Army Medical Corps. Lord Donoughmore's first wife was Sheila Parsons, daughter of Frank Parsons and Jean McNeal. From this marriage he has four children. Countess Sheila died in 1998 and Lord Donoughmore married Margaret Stonehouse in 2003. He lives in Oxfordshire. He is the father of the publisher Tim Hely Hutchinson and the painter Nicholas Hely Hutchinson. Richard Hely-Hutchinson, 8th Earl of Donoughmore Richard Michael John Hely Hutchinson, 8th Earl of Donoughmore (born