Separate but equal doctrine

The Separate but equal doctrine enters the book as a judicial formula that helped sustain Alabama’s ban on interracial sex and marriage. In affirming the convictions of Tony Pace and Mary Cox, the Supreme Court of the United States used language anticipating Plessy v. Ferguson; the ruling gave constitutional approval to racial restrictions whose force reached beyond public separation into intimate relationships. The episode places the doctrine within a broader history of law treating racial hierarchy as a legitimate ordering principle, while distinguishing that history from the later, separate mechanisms that continued to shape criminal proceedings.

Origins in racial hierarchy

The doctrine’s significance is set against the longer history of efforts to prevent interracial intimacy. After slavery, racial integrity laws and other restrictions helped reestablish white supremacy and subordinate African Americans. The book describes the regulation of sex and marriage not as an isolated legal concern but as part of a system designed to preserve racial hierarchy. In many Southern communities, officials treated investigating and punishing Black men’s relationships with white women as part of law enforcement’s work.

That history frames the case of Tony Pace, an African American man, and Mary Cox, a white woman, who fell in love in Alabama in the 1880s. They were arrested and each sentenced to two years in prison under the state’s racial integrity laws. Their prosecution made the enforcement of racial boundaries concrete: the state punished both people for a relationship that challenged the racial order those laws sought to maintain.

The Pace and Cox ruling

John Tompkins, one of a small minority of white professionals who considered the racial integrity laws unconstitutional, represented Pace and Cox on appeal. In 1882, the Alabama Supreme Court affirmed their convictions, arguing that interracial sex threatened racial separation and social order. The court’s reasoning cast the possibility of a mixed-race population as a public harm, turning racial prejudice into an asserted principle of governance.

The Supreme Court of the United States then unanimously upheld Alabama’s restrictions and the prison sentences. It used “separate but equal” language that the book identifies as a preview of the Court’s later decision in Plessy v. Ferguson. In this instance, the formula did not merely describe separation: it helped legitimate a law that punished interracial intimacy. The ruling thus connected a constitutional vocabulary of separation to the enforcement of racial boundaries in private life.

Wider reach and changing law

The ruling was followed by the passage of racial integrity laws in more states. Such laws prohibited African Americans—and in some states Native Americans and Asian Americans—from marrying or having sex with white people. Although enforcement was aggressive in the South, the restrictions were not confined to it: Idaho banned interracial marriage and sex between white and Black people in 1921, despite a population that was 99.8 percent nonblack. The doctrine’s appearance in the case therefore sits within a wider geography of laws that made racial classification a condition of intimate and family life.

The Supreme Court of the United States did not strike down anti-miscegenation statutes until Loving v. Virginia in 1967. Even after that landmark decision, Alabama’s constitution retained a prohibition on interracial marriage: in 1986, when Walter McMillian met Karen Kelly, its text still barred the legislature from authorizing or legalizing marriage between a white person and a Black person or descendant of a Black person. The chronology underscores the persistence of racial restrictions beyond the period in which the Supreme Court had upheld them.

Place in the book’s account of law

The book places the doctrine’s history alongside later examples of racial inequality in criminal justice, but these are related contexts rather than applications of the same rule. In 1987, all forty elected district attorneys in Alabama were white, despite sixteen majority-Black counties. The account also traces how peremptory strikes continued to exclude Black prospective jurors, and how Batson v. Kentucky in 1986 made such challenges more direct without ending prosecutors’ efforts to exclude Black jurors. These details show the continuing struggle over who could exercise authority in court and who could serve on a jury, while remaining distinct from the doctrine governing racial separation.

That distinction matters to the book’s larger argument: racial hierarchy did not depend on one doctrine alone. The Pace and Cox ruling gave legal sanction to restrictions on interracial relationships; later accounts of jury selection and criminal prosecution reveal other ways racial power could operate within institutions. Read together, they show how a judicial language of separation belonged to a broader history in which formal legal rules and everyday institutional practices could reinforce one another without being identical.