In 1936, the US government enacted the later-known Bonus Act, which triggered cash transfers to about 3 million veterans who had served in World War I. The large and unexpected nature of transfers provides an opportunity to examine the impact of family income shocks on children’s long-term outcomes. This paper studies the long-run benefits of veterans’ bonus receipt on their children’s old-age longevity. We employ data from Social Security Administration death records over the years 1975-2005 linked to the full count 1940 census and implement regressions that compare the longevity of children of veterans versus non-veterans across various ages of exposure to the bonus receipt. We find that those exposed during in-utero and early-life reveal significant improvements in longevity of about 5.6-7.5 months. Our balancing tests fail to provide concerning evidence regarding the endogenous dynamic differences in individual and family characteristics based on veteran-status that vary across cohorts. Further analyses suggest stronger effects among children of low-educated mothers and those with low socioeconomic index fathers. We also show that increases in house values, rise in homeownership, and potential improvements in neighborhood characteristics are candidate mechanisms of impact.