This thesis is a study about the influence of the Book of Mormon message to the Lamanites upon the establishment of The Church of Jesus Christ of Latter-day Saints in Mexico, primarily focusing upon the years 1875-1950. Several important events, people, and publications from the first seventy-five years of the Church's history in Mexico are evaluated as historical case studies in order to examine the extent to which the message to the Lamanites influenced the beginnings of the Latter-day Saints there. These case studies include the first mission to Mexico in 1875, early publications in Spanish, the dedication of Mexico by Apostle Moses Thatcher, the presidency of Rey L. Pratt, and the Third Convention. Though this thesis provides pertinent historical background and details, as well as analysis of key primary sources and documents, its main purpose and contribution is its focus on the theme of the Lamanites, within the context of early Latter-day Saint history in Mexico.