In late 1861, the Confederate Texas government commissioned Joseph W. Speight to raise an infantry battalion. Speight's Battalion became the Fifteenth Texas Infantry in April 1862, and saw almost no action for the next year as it marched throughout Texas, Arkansas, and the Indian Territory. In May 1863 the regiment was ordered to Louisiana and for the next seven months took an active role against Federal troops in the bayou country. From March to May 1864 the unit helped turn away the Union Red River Campaign. The regiment remained in the trans-Mississippi region until it disbanded in May 1865. The final chapter quantifies age, family status, wealthholdings, and casualties among the regiment's members.