


| Unionstates in the American Civil War |
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| Dual governments |
| Territories and D.C. |
TheNew Mexico Territory, comprising what are today theU.S. states ofNew Mexico andArizona, as well as the southern portion ofNevada, played a small but significant role in thetrans-Mississippi theater of theAmerican Civil War. Despite its remoteness from the major battlefields of the east, and its being part of the sparsely populated and largely undevelopedAmerican frontier, bothConfederate andUnion governments claimed ownership over the territory, and several important battles and military operations took place in the region. Roughly 7,000-8,000 troops from the New Mexico Territory served the Union, more than any other western state or territory.[1][2]
In 1861, the Confederacy claimed the southern half of the vast New Mexico Territory as its ownArizona Territory and waged the ambitiousNew Mexico Campaign in an attempt to control theAmerican Southwest and open up access to Union-heldCalifornia. Confederate power in the New Mexico Territory was effectively broken when the campaign culminated in the Union victory at theBattle of Glorieta Pass in 1862. Although the Confederacy never attempted another invasion of the region, its territorial government continued to operate out ofTexas, with Confederate troops marching under the Arizona flag until the end of the war.
The New Mexico Territory was organized as a U.S. territory in 1850, and for many years its precise boundaries and internal administration remained undefined. In 1853, the territory was expanded south of theGila River in theGadsden Purchase. Proposals for a division of the territory and the organization of a separateTerritory of Arizona were advanced as early as 1856. The first proposals for a separate Arizona Territory were not based on the modern east–west division but rather a north–south division. These proposals arose from concerns about the effectiveness of the territorial government inSanta Fe to administer the newly acquired southern portions of the territory.[3]
The first proposal dates to a conference held inTucson that convened on August 29, 1856. The conference issued a petition requesting organization of the territory and signed by 256 people to theU.S. Congress, and electedNathan P. Cooke as the territorial delegate to Congress. In January 1857, a bill for the organization of the territory was introduced into theUnited States House of Representatives, but the proposal was defeated on the grounds that the population of the proposed territory was yet too small. Later, a similar proposal was defeated in theSenate. The proposal for creation of the territory was controversial in part because of the perception that the New Mexico Territory was under the influence of southern sympathizers who sought to expandslavery into the Southwest.
In February 1858, the New Mexico territorial legislature adopted a resolution in favor of the creation of the Arizona Territory, but with a north–south border along the109th meridian, with the additional stipulation that all the Indians of New Mexico would be removed to northern Arizona.[3] In April 1860, impatient for Congress to act, a convention of thirty-one delegates met in Tucson and adopted a constitution for a provisional territorial government of the area south of34 degrees north. The delegates elected Dr.Lewis S. Owings as provisional governor.[4]
However, due to the small number of inhabitants in the proposed territory, the U.S. Congress continued to refuse to recognize any proceedings from any of the conventions being held in the area. Making matters worse, on March 2, 1861, the U.S. government formally revoked a contract with theButterfield Overland Stagecoach Company which was being used to support delivery of United States mail on the overland route which ran fromSan Antonio throughEl Paso, Texas, and on toMesilla, Tucson andCalifornia. The loss of this key communications link with the rest of the United States angered settlers in the Arizona region, just as many states in the Deep South were seceding from the Union.[5]

Having been only recently annexed fromMexico following theMexican–American War, many New Mexicans were apathetic to the ongoingsecession crisis in the United States. Aside from their distinct ethnicity and cultural identity, which was primarily Hispanic, the prior experiences of the territory's inhabitants had generated considerable alienation from and even animosity toward Texans.[6] In early 1861, Texans overwhelmingly voted to secede from the Union and the state subsequently joined the Confederacy. As a result, when a side had to be chosen, much of the population of the New Mexico Territory sided with the Union.[6] Many settlers in the region carved out by theGadsden Purchase willingly joined theConfederate States of America, while much of the rest of the territory remained loyal to theUnion. While the people of the southern portion of the territory had closer ties to the South, the more populous northern section had strong ties to Northern trade via theSanta Fe Trail, which connected the region withKansas andMissouri.[7][8][9]
Reflecting Southern sentiment in the southern portion of the territory, a convention was held at Mesilla on March 16, 1861, that adopted an ordinance of secession and called on the citizens of the western portion of the territory (now southern Arizona) to "join us in this movement". Subsequently, a second convention was held in Tucson on March 28, chaired byMark Aldrich, who had been Tucson's first mayor. The Tucson convention ratified the Mesilla convention, and provisional officers were elected for the newly establishedArizona Territory with Dr. Lewis S. Owings as its governor andGranville Henderson Oury as its first delegate to theConfederate States Congress, who immediately began petitioning for admission.[10]
Early in the war, the Confederacy regarded the Arizona Territory as a valuable route by which to potentially access thePacific Ocean, with the specific intention of capturing California. In July 1861, a small Confederate force of Texans, under the command of Lieutenant ColonelJohn R. Baylor, capturedMesilla, in the eastern part of the territory. When the town fort was abandoned by its Union garrison, Baylor's force cut off the fleeing Union troops and forced them to surrender. On August 1, Baylor issued a "Proclamation to the People of the Territory of Arizona", which declared that he was taking possession of the territory for the Confederacy, with Mesilla as the capital and himself as the governor.[11]
The social and political condition of Arizona being little short of general anarchy, and the people being literally destitute of law, order, and protection, the said Territory, from the date hereof, is hereby declared temporarily organized as a military government until such time as Congress may otherwise provide. I, John R. Baylor, lieutenant-colonel, commanding the Confederate Army in the Territory of Arizona, hereby take possession of said Territory in the name and behalf of the Confederate States of America. For all purposes herein specified, and until otherwise decreed or provided, the Territory of Arizona shall comprise all that portion of New Mexico lying south of thethirty-fourth parallel of north latitude.
— Lt. Colonel John R. Baylor, CSA[12]
Baylor's subsequent dismantling of the existing Union forts in the territory left the white settlers at the mercy of localApache Indians, who quickly gained control of the area and forced many of the settlers to seek refuge in Tucson. Even so, the people of Arizona remained firm in their support of Baylor, and held another convention on August 28, 1861, in Tucson, ratifying Baylor's proclamation. Once again, G.H. Oury was re-elected as a congressman to the Confederate States Congress. Governor Baylor approved the proceedings, and Delegate Oury was sent off toRichmond, Virginia on October 1, 1861.[13]
Delegate Oury was not initially seated in the Congress, but met with Confederate leaders as well as PresidentJefferson Davis. Texas CongressmanJohn Reagan introduced a bill on November 22, 1861, to formally create the Territory of Arizona. After two months of debate, the legislation passed on January 13, 1862, and the territory was officially created by proclamation of President Davis on February 14,[14][a] with this proclamation:
I, Jefferson Davis, President of the Confederate States of America, do issue this, my proclamation, declaring said "Act to organize the Territory of Arizona" to be in full force and operation, and that I have proceeded to appoint the officers therein provided to be appointed in and for said Territory.
— President Jefferson Davis[16]
The following month, in March 1862, the U.S. House of Representatives, now devoid of the southern delegates and controlled by Republicans, passed a bill to create its own version of theArizona Territory, using instead the north–south border of the107th meridian. The use of a north–south border rather than an east–west one had the effect of denying ade facto ratification of the Confederate Arizona Territory. The house bill stipulated that Tucson was to be capital. It also stipulated that slavery was to be abolished in the new territory. TheArizona Organic Act passed the Senate in February 1863 without the Tucson-as-capital stipulation, and was signed into law by PresidentAbraham Lincoln on February 24, which became the date of the official organization of the U.S. Arizona Territory. The first capital was atFort Whipple, followed byPrescott, in the northern Union-controlled area.[17]
At the start of the Civil War, the New Mexico territorial governor wasAbraham Rencher; although a Democrat fromNorth Carolina, he refused to support secession, and called out the territorial militia to counteract the Confederate invasion of July 1861. That month he was replaced byHenry Connelly, a native of New Mexico who would serve as governor for the remainder of the war. Under his leadership, the slavery laws of the territory were repealed and the Indian tribes of the territory were moved onto reservations.[18]
A significant Confederate offensive to seize the New Mexico Territory in more than just name resulted in theNew Mexico Campaign, which was fought from February to April 1862. TheConfederateArmy of New Mexico, marching west from Texas, briefly occupied the southern New Mexico Territory, arriving in February 1862, and tried to push north toColorado in an effort to capture its valuable mineral resources.Union troops re-captured the territory in early 1862, forcing the Confederates to retreat following theBattle of Glorieta Pass in March.[19] Confederate troops withdrew because a detachment of the1st Colorado Infantry under MajorJohn M. Chivington burned their supply train. Despite theUnion regulars,1st Colorado Infantry, and New Mexican Volunteers being defeated on the battlefield, they ultimately won the campaign; the battle was one of several later dubbed the "Gettysburg of the West".[20][21]
As the war dragged on and Union troops were withdrawn to fight elsewhere, famed explorer and frontiersmanKit Carson helped organize and command the1st New Mexico Cavalry, amilitia unit, to engage in campaigns against theApache,Navajo, andComanche in New Mexico and Texas, as well as participated in the earlierBattle of Valverde against the Confederates.
Federal troops left Arizona early in 1861 to reinforce operations in the east, the territory had been left open to Apache attack. Most notably,Mangas Coloradas andCochise led a series of raids on white civilians that left dozens dead and spread fear and terror across the territory. The Apache appeared to show equal hostility to both Union and Confederate forces, and both armiesattempted to control them; the resulting engagements are often considered part of both the Civil War and theAmerican Indian Wars. The remaining Union troops in the New Mexico Territory were concentrated in forts along and near theRio Grande; the commander of the UnionDepartment of New Mexico, ColonelEdward R.S. Canby, started raising regiments of New Mexico volunteers and militia to replace the regular army units which had been ordered east.[22]
CaptainSherod Hunter, at the head of the ConfederateArizona Rangers, occupied southern Arizona during the spring of 1862. He bore orders from Governor Baylor to lure the Apache into Tucson for peace talks and then to exterminate the adults. Hunter's frontiersmen spent most of their time expelling Union supporters and skirmishing withFederal troops, so the order was never enforced. A detachment of Hunter's force traveled along the Butterfield Overland Mail route and destroyed caches of hay to prevent their use by Union forces; it traveled to within eighty miles ofFort Yuma.[23]
In April 1862, a small party of Confederates moving northwest from Tucson met a Union cavalry patrol nearStanwix Station. The skirmish that followed, in which one Union cavalryman was wounded, is often considered the westernmost engagement of the Civil War. Ultimately, the goal of expanding Confederate influence into southern California and to the Pacific Ocean was never realized. Following theBattle of Picacho Pass atPicacho Peak, about 50 miles (80 km) northwest of Tucson, the lead detachment of ColonelJames H. Carleton'sCalifornia Column drove the Confederates out of Tucson and advanced on Mesilla, the capital of Confederate Arizona. By July the Confederates had retreated to Texas, where they continued to manage the territorial government fromEl Paso. Carleton's troops later fought theBattle of Apache Pass, during which they were ambushed by Apache warriors led by Cochise and Mangas Coloradas in Arizona'sChiricahua Mountains. Even though the column withstood the Apache attack and subsequently establishedFort Bowie to secure thepass, the Californians and the Apache would continue fighting throughout the war and beyond.[24]
TheConfederate Arizona Territory, which split off from the rest of the New Mexico Territory in 1861, was the first U.S. incarnation ofArizona, which would come into existence asArizona Territory in 1863. Confederate Arizona was created by capturing the southern tier of the Union's New Mexico Territory, while the boundary established in 1863 created an Arizona on the west separated from New Mexico on the east.[25]
Peralta, New Mexico, razed in the Battle of Peralta by weapons fire, was rebuilt and is inhabited today. The territorial legislature arranged for amonument commemorating the Union war dead and condemning the Confederacy to be erected in theSanta Fe Plaza.
Informational notes
Citations
In some ways, the Civil War in New Mexico was not so much about North versus South, but New Mexico versus Texas. That's one reason the territory's local population primarily fought on the side of the Union during the war, when two major battles and several skirmishes took place in New Mexico.
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