The French school system is frequently considered as a model of centralization: the State appears as its architect and controller. However, since its implementation during the Nineteenth century, this system requires the participation of local actors, such as school administrators, who can’t completely dismiss local educational issues. Thus, the necessary conciliation between national model and local contexts questions how actors might have an effect on schooling policies. In this regard, this article analyses the role of school administrators in the design of schooling structures, focusing on secondary education between 1830 and 1880. To this purpose, the article specifically considers the collège and afterwards lycée of Saint-Etienne, a s...