Egon Ronay, 94
My favorite quote:
He inspected airports, motorway service stations, hospitals, schools and park cafés on behalf of the ordinary public, for whom his round blue seals of approval, stuck on a window or a door, soon became a sine qua non of dining. He found Lyons Corner Houses very acceptable. To check transport cafés he would even don an anorak and cap, while the Rolls was parked around the corner.