In “Roster of the Rainbow Division (Forty-Second) Major General Wm. A. Mann commanding,” Harold Stanley Johnson meticulously compiles an authoritative account of the 42nd Infantry Division, also known as the Rainbow Division, which played a vital role in World War I. This meticulous roster not only catalogues the soldiers of the division but also imbues them with individual narratives that illustrate the collective experience of war. Johnson'Äôs literary style blends rigorous historical documentation with a narrative flair, offering readers insight into the camaraderie and valor of those who served, while situating the division'Äôs legacy within the broader context of American military history. Harold Stanley Johnson, a historian and military aficionado, draws from a wealth of research and personal interviews to craft this detailed examination of the Rainbow Division. His background in both military history and archival research, coupled with a deep-seated respect for the sacrifices of service members, informs his work. Johnson'Äôs dedication to preserving these voices not only serves to commemorate the division'Äôs contribution but also reflects his commitment to ensuring that these stories endure across generations. This work is a must-read for historians, military enthusiasts, and anyone with an interest in the human stories behind historical events. By bringing to life the sacrifices and triumphs of the Rainbow Division, Johnson offers invaluable insights that resonate beyond the battlefield, making this book an essential addition to any military history collection.