My Service in the United States Colored Cavalry: A Discourse Delivered Before the Ohio Military Order of the Loyal Legion, March 4, 1908, by Frederick W. Brown, is an important document that recounts the experience of serving in the American Cavalry during the Civil War. The authenticity and detail of the events described in the book make it a valuable source for studying military history and maintaining the memory of the participants in those events. Readers will have the opportunity to immerse themselves in the atmosphere of that time and feel firsthand the importance of the struggle for freedom and human rights.