This paper provides a thematic approach to three major United States government document series relating to topics of early United States diplomatic relations with Mexico; treaty negotiations, the Santa 'Fe trade, the Texas question, and claims. The document series examined are .the United States presidential papers, United States Congressional documents , and the National Archives Record Group 59, diplomatic dispatches from United State Ministers to Mexico. Historians must make an evaluation of all: documentary evidence available for an accurate assessment of historical events. Inadequate analysis of these major United States document series has limited this necessary assessment in the area of United States Mexican diplomatic relations, 1821-1846.

This thesis presents a history of the United States' war with Mexico with a focus on the maturing of the United States artillery on the battlefields of Mexico.

This study analyzes the procedures and operations of the Quartermaster, Ordnance, Commissary, and Medical Departments during Scott's campaign to determine the efficiency of the prevailing logistical system. Unpublished and published government documents, official records, manuscript collections, memoirs, diaries, and newspapers provide the data. The first chapter describes the logistical departments interworkings; the remaining chapters detail the operations of the bureaus during the expedition's assembly and campaign against Mexico City. The evidence revealed organizational deficiencies which caused severe shortages, particularly in transportation, for Scott's army. The shortages severely hampered the expedition. Because of .the numerous victories over 'Mexican forces, however,. American leaders ignored the organizational deficiencies, These shortcomings reappeared to .impede operations during the Civil War.

This study examines the efforts of the Union and Confederate diplomatic agents to influence the events along the Rio Grande during the Civil War. The paper compares the successful accomplishments of Confederate agent Jose Quintero to the hindered maneuverings of the Union representatives, Leonard Pierce and M. M. Kimuey. Utilizing microfilmed sources from State Department records and Confederate despatches, the paper relates the steps Quintero took to secure the Confederate-Mexico border trade, obtain favorable responses from the various ruling parties in northern Mexico, and hamper the Union agents' attempts to quell the border trade.

Joaquín de Arredondo was the most powerful and influential person in northeastern New Spain from 1811 to 1821. His rise to prominence began in 1811 when the Spanish military officer and a small royalist army suppressed Miguel Hidalgo’s revolution in the province of Nuevo Santander. This prompted the Spanish government to promote Arredondo to Commandant General of the Eastern Internal Provinces, making him the foremost civil and military authority in northeastern New Spain. Arredondo’s tenure as commandant general proved difficult, as he had to deal with insurgents, invaders from the United States, hostile Indians, pirates, and smugglers. Because warfare in Europe siphoned much needed military and financial support, and disagreements with New Spain’s leadership resulted in reductions of the commandant general’s authority, Arredondo confronted these threats with little assistance from the Spanish government. In spite of these obstacles, he maintained royalist control of New Spain from 1811 to 1821, and, in doing so, changed the course of Texas, Mexican, and United States history. In 1813, he defeated insurgents and American invaders at the Battle of Medina, and from 1817 to 1820, his forces stopped Xavier Mina’s attempt to bring independence to New Spain, prevented French exiles from establishing a colony …

This essay attempts to fill some of the gaps in our knowledge of Corral's public life, especially for the period of his vice-presidency. It is divided into three parts, covering Corral's career in state and national politics and in exile.

This thesis examines newspapers and correspondence of public men in the era of the Mexican war to provide some answers to pertinent questions regarding the South's role in the Mexican War. It attempts to reveal to some degree whether Southerners uniformly supported the war, whether their support arose from an expansionist sentiment or a desire to extend the area of slavery, whether any strong opposition to the war existed in the South, and why they supported or opposed it.