Gus Reed was a freed slave who traveled north as Sherman’s March was sweeping through Georgia in 1864. His journey ended in Springfield, Illinois, a city undergoing fundamental changes as its white citizens struggled to understand the political, legal, and cultural consequences of emancipation and black citizenship. Reed became known as a petty thief, appearing time and again in the records of the state’s courts and prisons. In late 1877, he burglarized the home of a well-known Springfield...