We study the long-run and multi-generational effects of a mass education program in Vietnam during the First Indochina War (1946-1954). Difference-in-difference estimations indicate that the children of mothers exposed to the education program had an average of 0.9 more years of education. We argue that the impact is via mother’s education. An additional year of maternal education increases children’s education by up to 0.65 years, a stronger effect than those found in the existing literature. Better household lifestyles and a stronger focus on education are possible transmission pathways.