This study examines several of the Confederate military operations in Texas from the years 1861 to 1865, including early defensive moves, the Battle of Galveston and the Battle of Sabine Pass.

"No adequate history of the activities of the Texas state government during the Civil War has been written. Instead this phase of state history has been treated only in a limited manner in general state and Civil War histories. A history of the state government's functions and role during this period is essential to understanding Texas' development as a state and its place in the Confederacy. This work is an attempt to provide such a history. A study of the internal political affairs of Texas during the war years, this work begins with the movement toward secession and ends with the collapse of the state government and the establishment of military rule in Texas. Emphasis has been placed on revealing how the state government attempted to cope with the numerous problems which the war engendered and the futility of these attempts." -- p.iii

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The Texas Ranger tradition of over twenty-five years of frontier defense influenced the methods by which Texans provided for frontier defense, 1861-1865. The elements that guarded the Texas frontier during the war combined organizational policies that characterized previous Texas military experience and held the frontier together in marked contrast to its rapid collapse at the Confederacy's end. The first attempt to guard the Indian frontier during the Civil War was by the Texas Mounted Rifles, a regiment patterned after the Rangers, who replaced the United States troops forced out of the state by the Confederates. By the spring of 1862 the Frontier Regiment, a unit funded at state expense, replaced the Texas Mounted Rifles and assumed responsibility for frontier defense during 1862 and 1863. By mid-1863 the question of frontier defense for Texas was not so clearly defined as in the war's early days. Then, the Indian threat was the only responsibility, but the magnitude of Civil War widened the scope of frontier protection. From late 1863 until the war's end, frontier defense went hand in hand with protecting frontier Texans from a foe as deadly as Indians—themselves. The massed bands of deserters, Union sympathizers, and criminals that accumulated on the frontier came to dominate the activities of the ensuing organizations of frontier defense. Any treatment of frontier protection in Texas during the Civil War depends largely on the wealth of source material found in the Texas State Library. Of particular value is the extensive Adjutant General's Records, including the muster rolls for numerous companies organized for frontier defense. The Barker Texas History Center contains a number of valuable collections, particularly the Barry Papers and the Burleson Papers. The author found two collections to be most revealing on aspects of frontier defense, 1863-1865: the William Quayle Papers, University of Alabama, and the Bourland Papers, Library of Congress. As always, the Official Records is indispensible for any military analysis of the American Civil War.

This thesis explores the impact of home front and battlefield morale on Texas's civilian and military population during the Civil War. It addresses the creation, maintenance, and eventual surrender of Confederate nationalism and identity among Texans from five different counties: Colorado, Dallas, Galveston, Harrison, and Travis. The war divided Texans into three distinct groups: civilians on the home front, soldiers serving in theaters outside of the state, and soldiers serving within Texas's borders. Different environments, experiences, and morale affected the manner in which civilians and soldiers identified with the Confederate war effort. This study relies on contemporary letters, diaries, newspaper reports, and government records to evaluate how morale influenced national dedication and loyalty to the Confederacy among various segments of Texas's population.

This thesis studies the issue of unionism in Texas during the era of the Civil War.

From its early days as a slave state, to its secession from the Union, to finally admitting that the south had failed, Texas played a major role in the Confederacy and the Civil War.

In October 1863 the United States Army's Rio Grande Expedition left New Orleans, bound for the Texas coast. Reacting to the recent French occupation of Mexico, President Abraham Lincoln believed that the presence of U.S. troops in Texas would dissuade the French from intervening in the American Civil War. The first major objective of this campaign was Brownsville, Texas, a port city on the lower Rio Grande. Its capture would not only serve as a warning to the French in Mexico; it would also disrupt a lucrative Confederate cotton trade across the border. The expedition had a mixed record of achievement. It succeeded in disrupting the cotton trade, but not stopping it. Federal forces installed a military governor, Andrew J. Hamilton, in Brownsville, but his authority extended only to the occupied part of Texas, a strip of land along the coast of the Gulf of Mexico. The campaign also created considerable fear among Confederate soldiers and civilians that the ravages of civil war had now come to the Lone Star State. Although short-lived, the panic generated by the Rio Grande Expedition left an indelible mark on the memories of Texans who lived through the campaign. The expedition achieved its greatest success by establishing a permanent Federal presence in Texas as a warning against possible French meddling north of the Rio Grande.

This thesis is a study of the Confederate command problem in the Trans-Mississippi West, 1861-1862.

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.