What is the relationship that theory and data have had with education, historically? What would the history of education be, anyway, without the habitual use and abuse of data and theory? On a more meta-level, is it so that all theories have histories and that, perhaps, too, all histories have theories? The Doctoral Conference on Theory and Data in the History of Education, now in its 11th year, is designed to give doctoral students from Stanford as well as doctoral students from the University of Wisconsin-Madison and the University of Vienna, along with senior scholars in the fields of history of education, curriculum studies, and curriculum theory, the space and community to interrogate these questions. The conference, a collaborative undertaking, is scheduled to take place at the end of Summer Quarter 2019 and will consist of doctoral students presenting core components from their dissertation projects as well as 3 public lectures open to the wider GSE and University communities.