 Thurman also created a map of important African American historical sites in Boston with the help of her daughter, Anne Chiarenza, which she called "Negro Freedom Trails of Boston".The map highlighted twenty-two points of interest to black history within the city of Boston and was in part created to give black school children a sense that they were part of the history of the city.What is today known as the Black Heritage Trail was adapted from Thurman's original idea.