The claim that God revealed the details of Book of Mormon geography is not new, but the recent argument that there was a conspiracy while the Prophet was still alive to oppose a revealed geography is a novel innovation. A recent theory argues that the “Mesoamerican theory” or “limited Mesoamerican geography” originated in 1841 with Benjamin Winchester, an early Mormon missionary, writer, and dissident, who rejected the leadership of Brigham Young and the Twelve after 1844. This theory also claims that three unsigned editorials on Central America and the Book of Mormon published in the Times and Seasons on September 15 and October 1, 1842 were written by Benjamin Winchester, who successfully conspired with other dissidents to publish them against the will of the Prophet. Three articles address these claims. This first article addresses two questions: Did Joseph Smith, as some have claimed, know the details of and put forth a revealed Book of Mormon geography? Second, what is a Mesoamerican geography and does it constitute a believable motive for a proposed Winchester conspiracy?