Total Immediate Ancestral Longevity (Tial) Indices Of Six Elite Individuals, Born Between 1819 And 1948

The sum of the ages at death of the six immediate ancestors of an individual (father, mother, paternal grandfather, paternal grandmother, maternal grandfather and maternal grandmother) constitutes the total immediate ancestral longevity (TIAL) index. In this study, I have expanded the empirical data on TIAL validity by calculating the TIAL index and adjusted TIAL score (TIAL index/6) of six elite individuals, born between 1819 and 1948, among whom four were women. Among the six individuals studied, three belong to British royalty (Queen Victoria, Queen Elizabeth II, and King Charles III), and other three were Anne Freud, Geraldine Chaplin, and George W Bush.
The TIAL indices of these six individuals ranged between 395 and 498. While, Geraldine Chaplin has the lowest TIAL index of 395, King Charles III has the highest TIAL index of 498. The adjusted TIAL scores of these six individuals ranged between 65.8 and 83.0 years. Though the merit of TIAL index of Raymond Pearl to calculate the lifespan of an individual deserves recognition, its demerits also deserve equal recognition.