See THIS LINK
Harry Golombek (1911-1995), the chess master and cryptographer, lived in Chalfont St. Giles after the War.
To see an Ordnance Survey map click at THIS LINK
|Gazetteer Index||Main MacTutor index|
An extract from The Mathematical Gazetteer of the British Isles created by David Singmaster
The original site is at THIS LINK