The 11th Missouri Infantry distinguished itself as just the type of regiment the Union needed in the Civil War. Hard as nails and loyal to a fault, the men of the "Eagle Brigade" would follow their commanders "into hell if they ordered." They battled two Confederate regiments at Iuka, turned the tide at Battery Robinett at Corinth, assaulted the impossible Stockade Redan at Vicksburg as whole ranks of soldiers were cut down, and broke Hood's line at Nashville. Although the 11th Missouri ranks among the 300 top regiments of the Civil War, little of its history has been formally recorded. This study provides a detailed account of the regiment's four-and-a-half years of outstanding service and a roster.

This 230 page atlas is divided into seven parts. Part I, Missouri's Divided Loyalties, and Part II, Missouri's Five Seasons, provide an overview of Missouri's history from the initial settlement of the Louisiana Purchase Territories through the opening years of the American Civil War. The remaining parts cover the Confederate plan, the Confederate movement into Missouri and the Union reaction, the Confederate retreat and Union pursuit into Kansas, and the final Confederate escape back into Arkansas. The atlas has a standard format with the map to left and the narrative to the right. Each narrative closes with two or more primary source vignettes. These vignettes provide an overview of the events shown on the map and discussed in the narrative from the perspective of persons who participated in the events. In most cases there are two vignettes with the first from a person loyal to the Union and the second from a person who supported the southern cause. A few narratives have two or more vignettes from only the Union side. This was done to emphasize disagreements and struggles among senior leaders to establish a common course of action. Map 25, Decision at the Little Blue River, is a good example and the three vignettes emphasize the disagreement between Maj. Gen. Samuel Curtis and his subordinate, Maj. Gen. James Blunt on where to locate the Union defensive line.

St Louis played a key role as a strategic staging ground for the Union Army in the American Civil War. This is a portrait of a war-torn city, encompassing a wide range of events such as the murder of publisher Elijah Lovejoy, the infamous Dred Scott saga, battles in the city, and more.