[philegibbs]

This summary misses a lot of recent developments in the case that were published recently in a book "Jeanne Calment, the Secret of Longevity Unravelled"

New evidence includes examples of signed documents showing that her signature changed suddenly in 1933, about a year before Yvonne is supposed to have died. There is also testimony from the family of a doctor in Switzerland that it was Jeanne who was ill with tuberculosis in 1931, not Yvonne who had recovered by then. There is also analysis of her recorded interviews showing that she often spoke more like Yvonne.