During the period of Independent Poland (1918–1939), the role of school hygiene was appreciated. At that time in the city of Łódź, a circle of outstanding Łódź physicians worked as school physicians. The circle included among others: Włodzimierz Dylewski, Stanisław Gutentag, Rachela Kalecka, Zygmunt Ługowski, Bolesław Mikłaszewski, Maria Rotenberg and Leonia Zeligsonówna. This article commemorates their names and retained pieces of their biographical entries for future generations. Some of those persons were Poles of Jewish origins, which was characteristic of the multiethnic city of Łódź before 1939.