The following are California State Militia units that were active between 1861 and 1865 during the American Civil War.
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.
The 4th California Infantry was a volunteer infantry regiment recruited from northern California during the American Civil War. It was organized at Sacramento, Placerville, and Auburn in September and October 1861.
The 10th Maine Infantry Regiment was mustered in for two years of service at Portland, Maine, on October 4, 1861, by then-Major Seth Eastman. It was mustered out on May 8, 1863, also at Portland. The regimental commander was Colonel George Lafayette Beal. The 10th Maine was a re-organization of the 1st Maine Infantry, a regiment primarily composed of men with two-year enlistments that was mustering out after completing three months of Federal service. Eight companies of the 1st Maine were retained in service, with Companies A and D replaced by newly recruited companies.
The 1st Regiment California Volunteer Infantry was an infantry regiment in the Union Army during the American Civil War. It spent its entire term of service in the western United States.
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 9th Iowa Infantry Regiment was an infantry regiment that served in the Union Army during the American Civil War.
The 37th Regiment Illinois Volunteer Infantry, nicknamed the "Fremont Rifles" and "Illinois Greyhounds", was an infantry regiment that served in the Union Army during the American Civil War.
The 64th Regiment Illinois Volunteer Infantry, nicknamed "Yates' Sharpshooters" was an infantry regiment that served in the Union Army during the American Civil War.
The Missouri State Militia was a federally funded state militia organization of Missouri conceived in 1861 and beginning service in 1862 during the American Civil War. It was a full-time force whose primary purpose was to conduct offensive operations against Confederate guerrillas and recruiters as well as oppose raids by regular Confederate forces. The militia at one time numbered more than 13,000 soldiers, but this force was reduced to 10,000 soldiers, by the United States government.
The 141st Infantry Regiment is an infantry regiment in the United States Army. The lineage of the 141st includes units tracing origins to the Texas Revolution, such as Company A, First Texas, 1836, and other infantry companies of the First Texas formed in the 1870s and 1880s.
The 9th Kansas Cavalry Regiment was a cavalry regiment that served in the Union Army during 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 111th Infantry Regiment, originally the Pennsylvania Militia or "Associators", were a Pennsylvania militia unit that fought in the American Revolution, composed of civilian males from the citizenry of Pennsylvania. It is one of several National Guard units with colonial roots and campaign credit for the War of 1812. The Pennsylvania Militia often fought in conjunction with General Washington and the Continental Army along the Delaware River.
The 29th Maine Infantry Regiment was an infantry regiment that served in the Union Army during the American Civil War.
Edwin Augustus Rigg (1822–1882), 49er, was a military officer in the American Civil War and the Apache Wars.
The 113th Infantry Regiment is an Infantry regiment of the New Jersey Army National Guard. It is one of several National Guard units with colonial roots and campaign credit for the War of 1812.
The 4th New York Heavy Artillery Regiment, U.S. Volunteers was a heavy artillery regiment that served in the Union Army during the American Civil War. The regiment operated as both heavy artillery and infantry beginning in February 1862 while serving in the defenses of Washington, D.C., and continued in both capacities until the end of the war.
The 3rd Massachusetts Volunteer Cavalry Regiment was a cavalry regiment that served in the Union Army during the American Civil War. It was organized by consolidating the 41st Massachusetts Mounted Infantry and the 2nd Battalion Massachusetts Cavalry on June 17, 1863. The regiment served with the XIX Corps, Army of the Gulf during the Red River Campaign in 1864. Its heaviest combat during this campaign took place during the Battle of Sabine Crossroads.
1st Missouri Light Artillery Regiment was a artillery unit from Missouri that served in the Union Army during the American Civil War. The unit began its service as the 1st Missouri Infantry Regiment, but converted to an artillery regiment in September 1861 and was brought up to a strength of 12 companies. Thereafter, each company served as an individual artillery battery, often separated from the other companies in the regiment. The individual batteries served in many actions in the Western Theater of the American Civil War and several batteries served together at key battles such as Fort Donelson, Shiloh, Corinth, Prairie Grove, and Vicksburg.