Structural and ideational theories are adapted to explore the influence of women's resources and ideational exposures on their family power and gender preferences in Minya, Egypt. Data from a household survey of 2,226 married women aged 15-54 years show that residence with marital kin decreases women's family power. Women in endogamous marriages have greater family power than women in non-endogamous marriages but still tend to prefer sons. Educated women report weaker son preference and greater influence in decisions but still tend to prefer sons. The positive association of women's education, paid work, and urban residence with a variable measuring girl or equal preference and family power suggests that selected resources and ideational exposures may improve girls' well-being in Minya.