This book was recommended in E.D. Hirsch's Core Curriculum series. As such, I was excited to read about the role that these individuals had played in the freeing of our country. Unfortunately, the book did not live up to my expectations primarily because he failed to provide an in depth story on many of the heroes in the book.
The first two chapters provided a number of short vignettes that failed to go into any great depth on any one individual. However, by the third chapter, "Two Famous Patriots," the stories became more in depth discussing the persons, their background, and their specific contribution to the war effort. In fact, I was particularly interested in the story of Crispus Attucks, who died, essentially antagonizing the British.
Davis also wrote a chapter on James Armistead (later Lafayette), who was a spy for the patriots. Ironically, he was asked by the British to spy on the Patriots!
Historically, the most interesting note was that many of the persons volunteered to serve the movement despite not being promised their own freedom. Though, many did eventually earn freedom for themselves or their families, it was only in the Rhode Island regiment were these soldiers could volunteer to serve in exchange for their freedom.
Of course, perhaps, I'm being too hard on Davis. Soldiers, regardless of race, have fought in a multitude of wars. Many we know little to nothing about besides names, ranks, birth date and date of death. I suspect that it was difficult for Davis to turn up significant information about a class of people who, at the time, was so undervalued in the cause of freedom.