When Jacquelyn S. Litt interviewed African-American and Jewish women who raised their children in the 1930s and 1940s, she found that these women responded to experts' advice in ways uniquely shaped by their ethnicity, race, and class. For middle-class African-American and Jewish women, medicalization took place in ethnically/racially segregated networks and functioned as a collectively held strategy for social advance as much as a set of technical practices for raising healthy children. For poor, single African-American mothers, everyday networks offered limited access to medical institutions or mainstream norms. Medical discourse was largely controlled by white women and men, which left these women disempowered in medical institutions and marginal to dominant definitions of acceptable mothering.