We dropped John off to catch his train to Preston and went to visit Nuffield Place in Oxfordshire, the home of William Morris, the multimillionaire philanthropist and founder of Morris Motors who died 50 years ago.

The house is now in the care of the National Trust and open to the public as a 1930s time warp. A handsome Lutyens-style mansion on the edge of the Chilterns, it was built in 1914 and bought and modernised by the Nuffields in 1933. On Morris's death on 22 August 1963, he left it to Nuffield College in Oxford (which he founded in 1937), stipulating that the house remain intact. It only came to the trust last year and it well worth a visit.