The feuds raging in Texas in the nineteenth century bound in acrimony not only families but special-interest groups that, feeling intolerably wronged, sought "extralegal justice" when they believed the law would give them no satisfaction. In I'll Die Before I'll Run the prominent historian C. L. Sonnichsen leaves no doubt that bad blood so often turned into bloody feuds in Texas because there the folk law of the frontier was reinforced by the unwritten...