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Intensive agriculture and deep plowing resulted in top-soil erosion and dust storms during the 1930s. These effects have been shown to affect agricultural income and land values that persisted for years. Given the growing literature on the relevance of in-utero and early-life exposures, it is surprising that studies focusing on links between the Dust Bowl and later-life health find inconclusive and mixed results. This paper re-evaluates this literature and studies the long-term effects of in-utero and early-life exposure to top-soil erosion caused by the Dust Bowl of the 1930s on old-age longevity. Specifically, we employ Social Security Administration death records linked with the full-count 1940 census and implement event studies and difference-in-difference designs to compare the longevity of individuals in high/medium versus low top-soil erosion counties post-1930 versus pre-1930. We find intent-to-treat reductions in longevity of about 0.9 months for those born in high erosion counties post-1930. We show that these effects are not an artifact of preexisting trends in longevity. Additional analyses suggest the effects are more pronounced among children raised in farm households, females, and those with lower maternal education. We also provide suggestive evidence that reductions in adulthood income are a likely mechanism channel.

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Several strands of research document the life-cycle impacts of lead exposure during the critical period of children's development. Yet little is known about long-run effects of lead exposure during early-life on old-age mortality outcomes. This study exploits the staggered installation of water systems across 761 cities in the US over the first decades of the 20th century combined with cross-city differences in materials used in water pipelines to identify lead and non-lead cities. An event-study analysis suggests that the impacts are more concentrated on children exposed during in-utero up to age 10. The results of difference-in-difference analysis suggests an intent-to-treat effect of 2.7 months reduction in old-age longevity for fully exposed cohorts. A heterogeneity analysis reveals effects that are 3.5 and 2 times larger among the nonwhite subpopulation and low socioeconomic status families, respectively. We also find reductions in education and socioeconomic standing during early adulthood as candidate mechanism. Finally, we employ WWII enlistment data and observe reductions in height-for-age among lead-exposed cohorts.