Caistor Grammar School is an endowed school dating from the reign of Charles I. The Dissolution of the Monasteries in the reign of Henry VIII had destroyed the principal sources of education of the times, and the numerous schools endowed throughout England during the following reigns are evidence that public-spirited men recognised the need created and endeavoured to meet it. Among others was Francis Rawlinson, of South Kelsey, who died in 1630, bequeathing money to endow a school at Caistor, and William Hansard of Biscathorpe, who supplemented the original gift in 1634. The monies given were invested in the purchase of land at Cumberworth, and of the rectorial tithes of Bilsby, of which the governors are still lay impropriators.