This thesis examines the state penitentiaries of Louisiana, Arkansas, and Texas that became sources of wartime supplies during the Civil War. A shortage of industry in the southwest forced the Confederacy to use all manufactories efficiently. Penitentiary workshops and textile mills supplied a variety of cloth, wood, and iron products, but have received minimal attention in studies of logistics. Penitentiary textile mills became the largest domestic supplier of cloth to Confederate quartermasters, aid societies, citizens, slaves, and indigent families. This study examines how penitentiary workshops converted to wartime production and determines their contribution to the Confederate war effort. The identification of those who produced, purchased, distributed, and used penitentiary goods will enhance our knowledge of overall Confederate supply