Since schools were segregated in Jacksonville, FL in the '40's, were teachers & principals also segregated by race?
During segregation in the South, there was a definitive separation of races in every aspect: parks, churches, stores, restaurants, schools, movies, public restrooms, drinking fountains, etc. So, of course, no white teachers worked in black schools and vice versa. The only place in which blacks and whites were closely involved was in the home in which there was a maid or servant of some kind. In such an environment there often was formed a close relationship between the children and the servant and sometimes between the mother and her maid, but certain protocol was still observed.
When one reads Harper Lee's "To Kill a Mockingbird" which is set in the 1950s, the reader perceives the loving relationship between the black servant Calpurnia and the Finch children. But, when Calpurnia takes the two children to her church one Sunday, some of the black congregation is upset; while Atticus Finch, the father, is not disturbed by this action, his sister who considers herself a proper Southern woman, takes exception to Calpurnia's action and chastises Atticus for not acting "properly."
In other works of literature, this separation is alluded to in various settings. In "Rolling Thunder, Hear My Cry," the main characters and their mother, who is a teacher, all go to the same black school as the bus for the white children rumbles down the road on which they walk. In Ralph Ellison's "Invisible Man" the main character attends an all-black college.