The Hippocrates Institute? Started by Ann Wigmore and Viktoras Kulvinskas...
Ann was on her deathbed, I believe mid-50s, before she went raw. Viktoras sill is raw. Certainly we have no real proof for Raw Foodism and life extension.
The peoples that used to live to long-life {mostly raw diet} no longer do - attributed to water and air pollution mostly.
There were documented people in the past whom lived to an old age by healthy diet, at vegan, but whether raw food will extend it is another matter.