4th Michigan Infantry Regiment

The 4th Michigan Infantry Regiment was an infantry regiment that served in the Union Army during the American Civil War. The 4th Michigan wore a very Americanized zouave uniform. This uniform consisted of a Federal dark blue 4 button sack coat, dark blue chasseur trousers, tan gaiters, and a maroon zouave fez with a light blue tassel.

Service
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 politician George Spalding and Major General Alfred E. Bates, who enlisted as privates 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.The Fourth Michigan Infantry was reorganized under orders of July 26, 1864 and mustered into Federal service as a regiment on October 14, 1864. On May 26, 1866, the regiment was mustered out of service in Houston, Texas.

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

Commanders

 * Colonel Dwight A. Woodbury, killed at the Battle of Malvern Hill, July 1, 1862
 * Colonel Harrison Jeffords, killed at the Battle of Gettysburg
 * Colonel Jonathan W. Childs Antietam
 * Colonel George W. Lumbard, died on May 6, 1864, from the wounds he received in action on the previous day at Wilderness, Virginia.