I spend a lot of time in a journal club discussing human behavior genetics with researchers who include researchers on extreme old age. That's a data-mining study, and would not impress other researchers in the field (or even get published in a better journal) without being replicated in an independent dataset. Spurious gene-correlation studies of this kind are a dime a dozen.
Food for thought is that the heritability of longevity as discovered in twin studies is actually not particularly high.
Food for thought is that the heritability of longevity as discovered in twin studies is actually not particularly high.