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4th Regiment Michigan Volunteer Infantry
Michigan state flag
Active June 20, 1861 to June 30, 1864
Country United States
Allegiance Union
Branch Infantry
Engagements First Battle of Bull Run
Peninsular Campaign
Second Battle of Bull Run
Battle of Chantilly
Battle of Antietam
Battle of Fredericksburg
Battle of Chancellorsville
Battle of Gettysburg
Battle of the Wilderness
Battle of Spotsylvania Court House
Battle of Cold Harbor

The 4th Regiment Michigan Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.


The 4th Michigan Infantry was organized at Adrian, Michigan and mustered into Federal service for a three year enlistment on June 20, 1861. The regiment's first lieutenant colonel was a future prominent politician and civil engineer, William Ward Duffield. Several other soldiers in the regiment reached post-war prominence, including state politician George Spalding, who enlisted as a private in Company A.

The regiment was mustered out on June 30, 1864. The regiment's veterans and recruits were assigned to the 1st Michigan Infantry.

Total strength and casualties[]

The regiment suffered 12 officers and 177 enlisted men who were killed in action or motally wounded and 1 officer and 107 enlisted men who died of disease, for a total of 297 fatalities.[1]


See also[]

  • List of Michigan Civil War Units
  • Michigan in the American Civil War


  1. The Civil War Archive website after Dyer, Frederick Henry. A Compendium of the War of the Rebellion. 3 vols. New York: Thomas Yoseloff, 1959.