Friedman — Volume 61, Issue 5

Through criminal trial records from the nineteenth and early twentieth centuries, this article examines the "unwritten law"—an extrajudicial doctrine that permitted men to kill adulterers and seducers in defense of family honor. The authors analyze cases including Daniel Edgar Sickles's acquittal for murdering his wife's lover, Margaret Finn's killing of her faithless fiancé, and John Beal Sneed's acquittal for shooting a man he believed seduced his wife. These trials reveal how juries applied popular notions of justice, patriarchy, and gender that diverged sharply from official penal codes. While state laws required narrow circumstances for justifiable homicide in adultery cases, juries regularly acquitted men and women who killed to preserve honor. The article demonstrates how criminal trials functioned as windows into evolving social attitudes toward women, marriage, masculinity, and vigilantism from 1850 to 1950. The unwritten law gradually faded as attitudes toward female sexuality and marital relations changed, illustrating how popular legal culture preceded formal doctrinal transformation.

Topics: Criminal Procedure · Legal History · Family Law

Keywords: unwritten law · vigilante justice · adultery · honor killing · jury nullification · patriarchy · criminal trials