This chapter begins by giving an overview of the historical developments of schooling in New York City preceding the introduction of gradation. Utilizing actor-network theory, it traces the school organization assembly in the city’s school system between 1805 and 1842. Furthermore, the analysis of the emerging school organization network is complemented by a detailed presentation of the individual actors involved in this “proto-gradation” assembly. The results of the analysis show a specific constellation of actors, which initially formed to offer education for unprovided for pupils, but that also depicts some of the early signs of gradation. These can be found in certain organizational measures such as the spatial separation of schools as well as a move toward standardized proficiency levels required for promotion.