Scholars of adult basic literacy curricular materials have argued that the skill-based, deficit-oriented approach of many such materials denies the interests and motivations of adult learners. Exploring why these kinds of curricular materials are prevalent in adult basic literacy education, this article focuses on the case of ProLiteracy, a nongovernmental adult basic literacy organization that grew out of missionary Frank Laubach's work in the 1930s to convert illiterate adults to Christianity and a belief in American-style capitalism. This article argues that the legacy of Laubach's evangelism continues to affect adult literacy instruction in the United States today, through the content of many of the materials in the ProLiteracy catalogue, as well as through the volunteer-based one-to-one tutoring model's positioning of low-literacy adults. (Contains 1 table, 4 figures and 9 notes.)