UNION WISCONSIN VOLUNTEERS
20th Regiment, Wisconsin Infantry
Organized at Madison, Wis., and mustered in August 23, 1862. Left State for St. Louis, Mo., August 30; thence moved to Benton Barracks September 2, and to Rolla, Mo., September 6. Attached to 1st Brigade, 3rd Division, Army of the Frontier, Dept. of Missouri, to June, 1863. 2nd Brigade, Herron's Division, 13th Army Corps, Army of the Tennessee, to August, 1863. 2nd Brigade, 2nd Division, 13th Army Corps, Dept. of the Gulf, to June, 1864. United States Forces, Texas, to August, 1864. United States Forces, Mobile Bay, to December, 1864. District of Southern Alabama, Dept. of the Gulf, to February, 1865. 1st Brigade, 2nd Division, Reserve Corps, Military Division West Mississippi, to February, 1865. 1st Brigade, 2nd Division, 13th Army Corps (New), Military Division West Mississippi, to July, 1865.
- March to Springfield, Mo., September 10-24, 1862; thence to Cassville October 11-14. Expedition to Cross Hollows over Boston Mountains October 17-24. March to Wilson's Creek November 4-22. Forced march to relief of General Blount December 3-6. Battle of Prairie Grove , Ark., December 7. Duty at Prairie Grove till December 27. Expedition over Boston Mountains to Van Buren December 27-29. Duty at various points in Missouri till March 31, 1863. At Lake Springs, Mo., till June. Moved to St. Louis, Mo., thence to Vicksburg, Miss., June 3-10. Siege of Vicksburg , June 12-July 4. Expedition to Yazoo City July 12-21. Capture of Yazoo City July 13. Moved to Port Hudson, La., July 23, and duty there till August 28. Moved to Carrollton August 28, and duty there till September 5. Expedition to Morganza September 5-October 11. Atchafalaya September 8-9. Expedition to Rio Grande, Texas, October 24-November 10. Moved to Brownsville, Texas, November 5-6. Occupation of Brownsville November 6. Garrison duty at Fort Brown till July 28, 1864. Cross Rio Grande to Matamoras, Mexico, January 12, 1864, to protect American Consul and assist in the removal of property belonging to American citizens. Moved to Carrollton August 1-5, thence to Mobile Bay, Ala. Operations against Mobile Bay , August 9-23. Capture of Fort Morgan August 23. Duty at Navy Cove, near Fort Morgan, till December 14. Expedition from Mobile Bay to Bonsecours and Fish River September 9-11. Moved to Pascagoula December 14, thence to Franklin Creek. Captured 8,000,000 feet of lumber and raft it through enemy's country to Griffin's Mills, where 7,000,000 feet more were captured. Moved to Navy Cove December 31, and duty there till March, 1865. Campaign against Mobile and its Defences March 17-April 12. Siege of Spanish Fort and Fort Blakely March 26-April 8. Assault and capture of Fort Blakely , April 9. Duty at Spanish Fort and Fort Blakely collecting stores, ammunition and Artillery till May 6. Moved to Mobile May 6, and duty there till June 22. Ordered to Galveston, Texas, June 22, and duty there till July 14. Mustered out July 14, 1865.
Regiment lost during service 5 Officers and 100 Enlisted men killed and mortally wounded and 1 Officer and 145 Enlisted men by disease. Total 251.
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