ALT Study title: Intergenerational Child Mortality Impacts of Deworming: Experimental Evidence from Two Decades of the Kenya Life Panel Survey Abstract: We assess the impacts of a randomized Kenyan school-based deworming intervention on the mortality of recipients’ children using a 23-year longitudinal data set of original participants (N = 6,523) and their children (N = 14,172). The under-5 mortality rate reduced by 24% (18 deaths per 1000 live births) for children of treatment group individuals. We find that a combination of improvements in living standards, increased urban residence, higher schooling attainment, delayed fertility, and greater use of health care in the parent generation contributed to the reduction. This study provides further evidence that age-specific health investments are essential for development.