Stephen Watts Kearny was one of the foremost antebellum frontier officers of the United States Army. He is remembered for his significant contributions in the Mexican–American War, especially the conquest of California. The Kearny code, proclaimed on September 22, 1846, in Santa Fe, established the law and government of the newly acquired territory of New Mexico and was named after him. His nephew was Major General Philip Kearny of American Civil War fame.
Fort Walla Walla is a United States Army fort located in Walla Walla, Washington. The first Fort Walla Walla was established July 1856, by Lieutenant Colonel Edward Steptoe, 9th Infantry Regiment. A second Fort Walla Walla was occupied September 23, 1856. The third and permanent military Fort Walla Walla was built in 1858 and adjoined Steptoeville, now Walla Walla, Washington, a community that had grown up around the second fort. An Executive Order on May 7, 1859 declared the fort a military reservation containing 640 acres devoted to military purposes and a further 640 acres each of hay and timber reserves. On September 28, 1910 soldiers from the 1st Cavalry lowered the flag closing the fort. In 1917, the fort briefly reopened to train men of the First Battalion Washington Field Artillery in support of action in World War I. In 1921, the fort and property were turned over to the Veterans Administration where 15 original buildings from the military era remain. Today, the complex contains a park, a museum, and the Jonathan M. Wainright Memorial VA Medical Center.
Philip St. George Cooke was a career United States Army cavalry officer who served as a Union General in the American Civil War. He is noted for his authorship of an Army cavalry manual, and is sometimes called the "Father of the U.S. Cavalry."
The 1st Cavalry Regiment is a United States Army regiment that has its antecedents in the early 19th century in the formation of the United States Regiment of Dragoons. To this day, the unit's special designation is "First Regiment of Dragoons". While they were the First Regiment of Dragoons another unit designated the 1st Cavalry Regiment was formed in 1855 and in 1861 was re-designated as the 4th Cavalry Regiment. The First Dragoons became the 1st Cavalry Regiment since they were the oldest mounted regiment.
California's involvement in the American Civil War included sending gold east to support the war effort, recruiting volunteer combat units to replace regular U.S. Army units sent east, in the area west of the Rocky Mountains, maintaining and building numerous camps and fortifications, suppressing secessionist activity and securing the New Mexico Territory against the Confederacy. The State of California did not send its units east, but many citizens traveled east and joined the Union Army there, some of whom became famous.
Erasmus Darwin Keyes was a businessman, banker, and military general, noted for leading the IV Corps of the Union Army of the Potomac during the first half of the American Civil War.
The Pacific Coast Theater of the American Civil War consists of major military operations in the United States on the Pacific Ocean and in the states and Territories west of the Continental Divide. The theater was encompassed by the Department of the Pacific that included the states of California, Oregon, and Nevada, the territories of Washington, Utah, and later Idaho.
The 2nd Massachusetts Volunteer Cavalry Regiment was a regiment of cavalry troops in the Union army during the American Civil War. It consisted primarily of men from the states of California and Massachusetts, and served in the Eastern Theater, despite its western roots.
The California Army National Guard is one of three components of the California National Guard, a reserve of the United States Army, and part of the National Guard of the United States. The California Army National Guard is composed of 18,450 soldiers. Nationwide, the Army National Guard comprises approximately one half of the US Army's available combat forces and approximately one third of its support organization. National coordination of various state National Guard units are maintained through the National Guard Bureau.
The state of Illinois raised a number of short-lived Independent Cavalry Companies which served in the Union Army during the American Civil War. Most of these units were quickly amalgamated with larger formations.
Active was a survey ship that served in the United States Coast Survey, a predecessor of the United States Coast and Geodetic Survey, from 1852 to 1861. Active served on the U.S. West Coast. She conducted the Coast Survey's first reconnaissance from San Francisco, California, to San Diego, California, in 1852. Active sometimes stepped outside her normal Coast Survey duties to support U.S. military operations, serving as a troop transport and dispatch boat during various wars with Native Americans and during the San Juan Islands "Pig War" with the United Kingdom in 1859. She also rushed Union troops to Los Angeles, California, in 1861 during the early stages of the American Civil War.
Fort Gaston was founded on December 4, 1859, in the redwood forests of the Hoopa Valley, in Northern California, on the west bank of the Trinity River, 14 miles (23 km) from where the Trinity flows into the Klamath River. It was located in what is now the Hoopa Valley Indian Reservation. Fort Gaston as part of the Humboldt Military District was intended to control the Hupa Indians and to protect them from hostile white settlers. The post was named for 2nd Lieutenant William Gaston, of the First Dragoons, who had been killed May 17, 1858, during the Spokane–Coeur d'Alene–Paloos War.
The 1st Regiment California Volunteer Cavalry was a cavalry regiment in the Union Army during the American Civil War. It was first formed of five companies as 1st Battalion, 1st Regiment California Volunteer Cavalry between August and October 31, 1861, at Camp Merchant near Oakland. After the battalion was organized it was sent to Southern California, three companies being stationed at Camp Latham, near Los Angeles, and two at Camp Carleton, near San Bernardino. November 20–29, 1861, a detachment under Second Lt. C. R. Wellman was stationed at Camp Wright, and pursued and captured Dan Showalter's party west of the San Jose Valley and Warner's Ranch. The battalion remained in Southern California until the spring of 1862, when it became part of the California Column, and formed the advance force of that Column during the march to New Mexico Territory and Texas. In 1863, the Regiment was brought to full strength when seven more companies were raised to bring it to a full strength of twelve companies. The five companies first organized were mustered out August 31, 1864, the terms of service of most of the men having expired. Two new companies, B and C, were organized in New Mexico, by consolidation of the few men whose terms had not expired, and by new enlistments, and two new companies were enlisted in California, A and E, which, upon the completion of their organization, were sent to Arizona. All of the companies of First Volunteer Cavalry stationed in New Mexico and Texas, were ordered to assemble at Baird’s Ranch, near Albuquerque, to be mustered out of the service, during the month of September, 1866. Company M was the last mustered out on the September 30, 1866. 1st Volunteer Cavalry Regiment spent its entire term of service in the western United States in California and New Mexico Territory and Texas.
Charles D. Beckwith was an early frontier photographer who operated studios in California, Utah and Idaho during the late nineteenth century.
The 64th Virginia Mounted Infantry Regiment was formed from troops raised in Lee, Scott, Wise and Buchanan counties in Virginia for service in the Confederate States Army during the American Civil War. It served as an infantry regiment, a cavalry regiment, and a mounted infantry (dragoon) unit, and had a mixed reputation.
James Adams Cunningham was a volunteer officer in the Union Army during the American Civil War.
James Henry Carleton was an officer in the U.S. Army and a Union general during the American Civil War. Carleton is best known as an Indian fighter in the southwestern United States.
The following list is a Bibliography of American Civil War Union military unit histories. More details on each book are available at WorldCat.
The 1st Massachusetts Volunteer Cavalry Regiment was a cavalry regiment that served in the Union Army during the American Civil War.
United States of America 
Union Army 
Captain 
2nd Regiment of Cavalry, Massachusetts Volunteers 
