warning in the early pages of Exhalation

Is this helpful as a warning in the early pages of my newest novel,  EXHALATION?

The NANDRIA Series has been my attempt to capture characters from the 1940s and early 1950s that created my world and my assumptions about what was valuable and who was not. As a child, i heard, and maybe repeated, words like colored, pickaninny, jigaboo, darky, coon, spade and spook if not niglet, bootlip, burrhead and monkey. I did not know they were slurs, but the Black people around me heard and knew the humiliation that these words and others were meant to deliver. I held so many assumptions i now know were invalid, but which i understood as the way the world was. Being family, i love both sides. It is my hope that these stories may give insight into the foibles and fears of each of us. Perhaps we may see each other as humanly vulnerable rather than evil.