While previous research has identified religion as an influence of fertility, how context changes the nature of that relationship remains little understood. Using census data from Brazil, Chile and Mexico, this study examines whether the high fertility pattern of one pronatalist, American-born religion (The Church of Jesus Christ of Latter-day Saints [LDSs]) translates to the Latin American context. Results indicate that it does, but only among a subgroup as the pronatalist pattern is masked by member's educational attainment and mixed religion marriages. When these attributes are accounted for LDS fertility is high in Latin America, especially among the more educated. This study highlights both the importance of member characteristics in influencing fertility and the role of selective recruiting in determining how and whether these characteristics vary by context.