This study used longitudinal data from the 1970 British Cohort Study (BCS70) to examine links between mothers' nonauthoritarian child-rearing attitudes, assessed when children were aged 5, and children's values at age 30 (antiracism, right-wing beliefs, support for authority, support for traditional marital values, support for working mothers, political cynicism, environmentalism, and support for the work ethic). Mothers' nonauthoritarian child-rearing attitudes were positively related to cohort members' antiracism and environmentalism, and were negatively related to cohort members' support for authority, support for traditional marital values, and support for the work ethic even after mothers' values (liberalism and support for working mothers) and known early (parental social class, socioeconomic disadvantage, family structure, general ability, and emotional and behavioral problems) and concurrent (social class, partner status, religiosity, self-reported physical health, and depressed mood) confounding factors were controlled for.