The ideological atmosphere has been highly charged recently in the study of American educational history. Hot debates center on the altruistic or self-serving motives of public school reformers, the liberating or oppressive effects of schools, and the relationship of educational history to present policy. Historians of American education are often most readily identified by ideological labels like “radical” or “Whig”. Thus it seems incongruous to me that members of this subfield have paid so little systematic attention to the ideology of the people we write about, and in particular, to the ideology of school reformers. This inattention to the concept of ideology and to the substance of particular ideologies is true of American social historians in general, with some important exceptions. Most often, one encounters the term in a casual reference, where the writer has apparently taken for granted the meaning of the term and the constituency of the ideology mentioned. Nancy Cott refers variously to “early nineteenth-century ideology”, to “ideology in reawakened Protestantism,” and to “nineteenth-century sexual ideology.” Linda Kerber refers to “republican ideology” without defining either term, and Stephen Thernstrom refers not only to the “ideology of mobility” on which he focused, but to a “total reigning ideology,” of which it was a part.