9th Indiana Infantry Regiment

9th Regiment Indiana Volunteer Infantry
Company A, Indiana Volunteer Infantry. National Archives and Records Administration.
Active	April 22, 1861 to September 28, 1865
Country	United States
Allegiance	Union Army
Branch	Infantry
Engagements	Battle of Cheat Mountain Battle of Shiloh Battle of Perryville Battle of Stones River Battle of Chickamauga Battle of Lookout Mountain Battle of Missionary Ridge Battle of Kennesaw Mountain Siege of Atlanta
Commanders
Colonel of the Regiment	Robert H. Milroy Gideon C. Moody Isaac C.B. Suman William H. Blake

The 9th Indiana Volunteer Infantry Regiment was a volunteer infantry regiment in the Union Army during the American Civil War. It was organized on April 22, 1861, for three-months' service in Indianapolis. After being reorganized for three years' service in late August and early September 1861, the 9th took part in many major battles, including Shiloh, Stones River, Chickamauga, Lookout Mountain, Missionary Ridge, Kennesaw Mountain and the Siege of Atlanta.

The 9th was mustered out on September 28, 1865, after duty at San Antonio and New Braunfels, Texas.

Governor Oliver Hazard Perry Morton appointed Robert H. Milroy as colonel of the 9th on April 26, 1861, nearly two weeks after the firing began at the Battle of Fort Sumter.

By September 3, 1861, Milroy had become a brigadier general. He continued to command troops in West Virginia (as Commander of the Cheat Mountain District) into 1862.

By the time the 9th was assigned to William B. Hazen's 19th Brigade of Buell's Army of the Ohio in March 1862, Colonel Gideon C. Moody, a former prosecutor and politician, commanded the regiment. Hazen called Moody "a most gallant officer."