Benjamin Grierson, a former musician with no prior military experience, is perhaps most famous for "Grierson's Raid", which served as a diversion during General Ulysses S. Grant's Vicksburg Campaign in the Spring of 1863. As the result of the famous raid and other service during the war, Grierson rose in rank from major to major general of volunteers. Unlike many other citizen-soldiers of the Civil War, however, he did not return to civilian life after the war. Instead, Grierson accepted a commission as a Regular Army colonel and was given command of the newly-formed 10th Cavalry Regiment. The 10th Cavalry was one of the four, along with the 9th Cavalry and the 24th and 25th Infantry Regiments newly formed "Colored" regiments of the U.S. Army, which had white officers and black soldiers. Grierson welcomed the opportunity to command a regiment which many other white officers would have regarded as potentially damaging to their careers. Not only did he command the regiment for a quarter of a century, but he continually defended his soldiers against the prejudice that was prevalent throughout American society at the time. Grierson's rather progressive thinking also extended to his dealing with American Indians. Though he and his men participated in many of the Indian wars of the Southwest, Grierson continually sought a more intelligent and humane solution to the Indian "problem". Much of what we now see as Grierson's virtues, however, came with a price to his career and to his family. For instance, Grierson's continual defense of his men certainly played a role in his not being promoted to brigadier general until three months before his retirement in 1890. Likewise, his family would suffer greatly during the frequent moves from one gruelingly inhospitable frontier Army post to another. At least partly as a result of his career choices, Grierson's relationship with his wife was frequently stormy and the military dynasty which he had predicted ultimately failed to appear. Though his wife bore him seven children, only four sons survived into adulthood. Of these surviving sons, three remained life-long bachelors, while only one married and produced any offspring. All of Grierson's children appear to have suffered, in varying degrees, from the manic-depression that was prevalent among his wife's family, and two of his sons would have to be institutionalized.

Benjamin Grierson, himself, emerges from this work as a tragic figure. He was a man who was ahead of his time on issues of racial tolerance and was punished, directly or indirectly, for his beliefs. Likewise, he witnessed financial catastrophe, disease, and mental illness destroy his family. In the end, the reader is left wondering if the old adage is really true, that "no good deed goes unpunished."