About 10 years ago Mrs OS and I bumped into this Famous Oxfordshire Resident out in the fields near Pishill, accompanied by a 3-legged labrador!
The cache is on the ground at a spot with a great view, at N51 AB.CDE W001 FG.HJK
This person was born on the CGth day of the month. They have A siblings and D children. There are B letters in their middle name. They have been questioning young academics since 199E. They received an Enigma machine in the post in 20FJ. They started presenting a topical programme in 19H9. There are K letters in their father's first name that begins with an A.