The 23rd Wisconsin Infantry Regiment was a volunteer infantry regiment that served in the Union Army during the American Civil War.
The 23rd Wisconsin was organized at Madison, Wisconsin, and mustered into Federal service on August 30, 1862.
Duty at Newport, Ky., till October 8, 1862. Moved to Paris, Ky., October 8âÂÂ15, thence to Lexington and Nicholasville, Ky., October 22âÂÂ31. Moved to Louisville; thence to Memphis, Tenn., November 8âÂÂ27. Sherman's Yazoo Expedition December 20, 1862, to January 3, 1863. Expedition from Milliken's Bend to Louisiana & Shreveport Railroads, December 25âÂÂ26. Chickasaw Bayou, December 26âÂÂ28. Chickasaw Bayou, December 29. Expedition to Arkansas Post, Ark., January 3âÂÂ10, 1863. Assault on and capture of Fort Hindman, Arkansas Post, January 10âÂÂ11. Moved to Young's Point, La., January 15, and duty there till March 8. Expedition to Cypress Bend, Ark., February 14âÂÂ29. Moved to Milliken's Bend, La., March 8, and duty there till April 25. Movement on Bruinsburg and turning Grand Gulf April 25âÂÂ30. Battle of Port Gibson, May 1 (Reserve). Battle of Champion's Hill, May 16. Big Black River, May 17. Siege of Vicksburg, Miss., May 18-July 4. Assaults on Vicksburg May 19 and 22. Advance on Jackson, Miss., July 4âÂÂ10. Siege of Jackson July 10âÂÂ17. Camp at Vicksburg till August. Ordered to New Orleans, La., August 24. Expedition to New and Amite Rivers September 24âÂÂ29. Western Louisiana Campaign October 3-November 30. Carrion Crow Bayou November 3. At New Iberia till December 7. Moved to Berwick, December 7âÂÂ10. Moved to Brashear City, thence to Algiers and to Matagorda Peninsula, Texas, December 13, 1863 â January 1, 1864. Reconnoissance on Matagorda Peninsula January 21, 1864. Duty at DeCrow's Point till February 22. Moved to Algiers, La., February 22âÂÂ26. Red River Campaign March 10-May 22. Advance from Franklin to Alexandria March 14âÂÂ26. Bayou de Paul, Carroll's Mill, and battle of Sabine Cross Roads, April 8. Monett's Ferry, Cane River Crossing, April 23. At Alexandria April 26-May 13. Construction of dam at Alexandria April 30-May 10. Retreat to Morganza May 13âÂÂ20. Mansura, May 16. Moved to Baton Rouge May 24, and duty there till July 8. Moved to Algiers, La., July 8, thence to Morganza July 26. Expedition to Mobile Bay August 18-September 2. Operations near Morganza September 16âÂÂ25. Expedition to Bayou Sara October 3âÂÂ6. Bayou Sara and Thompson's Creek, near Jackson, October 5. Moved to Helena, Ark., October 10, and duty there till February 23, 1865. Ordered to New Orleans, La., February 23. Campaign against Mobile, Ala., and its defences March 17-April 12. Siege of Spanish Fort and Fort Blakely March 26-April 8. Assault on and capture of Fort Blakely, April 9. Occupation of Mobile April 12. Duty at and near Mobile till July. The regiment was mustered out on July 4, 1865, at Mobile, Alabama.
The 23rd Wisconsin suffered 1 officer and 40 enlisted men killed in action or who later died of their wounds, plus another 5 officers and 262 enlisted men who died of disease, for a total of 308 fatalities.