20th Michigan Volunteer Infantry Regiment

Historical Notes:
The 20th Regiment, Michigan Infantry was organized at Jackson, Michigan on August 15-19, 1862. It was mustered out May 30, 1865. The regiment lost 13 officers and 111 enlisted men killed in action or mortally wounded, and a further 3 officers and 175 enlisted men who died of disease, a total of 302 fatalities. Officers:
Colonel Adolphus Wesley Williams Assignments:
Organized at Jackson, Mich., August 15-19, 1862. Left State for Washington, D.C., September 1, thence march to Leesburg, Va., September 8, and to Sharpsburg, Md., September 18-22. Attached to 1st Brigade, 1st Division, 9th Army Corps, Army of the Potomac, to April, 1863, and Army of the Ohio, to June, 1863. 3rd Brigade, 1st Division, 9th Army Corps, Army of the Tennessee, to August, 1863, Army of the Ohio to January, 1864. 1st Brigade, 1st Division, 9th Army Corps, Army Ohio, to April, 1864. 2nd Brigade, 3rd Division, 9th Army Corps, Army of the Potomac, to September, 1864. 2nd Brigade, 1st Division, 9th Army Corps, to May, 1865. Service:
Duty at Sharpsburg, Md., September 22 to October 6. 1862, and at Pleasant Valley, Md., until October 14, At Nolen's Ford to October 30. Advance on Culpeper November 2-15, and to Falmouth, Va., November 16-19. Battle of Fredericksburg, Va., December 12-15. "Mud March" January 20-24, 1863. At Falmouth until February 19. Moved to Newport News, Va., February 19, thence to Kentucky March 19-23. Duty at various points in Kentucky until June. Expedition to Monticello and operations in Southeast Kentucky April 26-May 12. Skirmish Alcorn's Distillery near Monticello May 9 (Detachment). Horse Shoe Bend, Ky., May 10. Moved to Vicksburg, Miss., June 3-14. Siege of Vicksburg June 14-July 4. Advance on Jacksoon, Miss., July 4-10. Siege of Jackson July 10-17. Destruction of Mississippi Central Railroad at Madison Station July 18-22. Camp at Milldale until August 4. Moved to Covington, Ky., thence to Crab Orchard, Ky., August 4-30. March to Knoxville, Tenn., September 10-26. Action at Blue Springs October 10. Duty at Lenoir Station until November 14. Knoxville Campaign November 4-December 24. Campbell's Station November 16. Siege of Knoxville November 17-December 5. Repulse of Longstreet's assault on Fort Saunders November 29. Pursuit of Longstreet to Bean's Station December 5-18. Strawberry Plains January 21-22, 1864. Advance to Morristown January 24-March 2. Reconnaissance to Chucky River March 14. Moved from Knoxville to Nicholasville, Ky., thence to Annapolis, Md., March 23-30. Campaign from the Rapidan to the James River May 4-June 15. Battles of the Wilderness May 5-7; Spottsylvania May 8-12; Ny River May 10; Spottsylvania Court House May 12-21. Assault on the Salient May 12. North Anna River May 23-26. Ox Ford May 23-24. On line of the Pamunkey May 26-28. Totopotomoy May 28-31. Cold Harbor June 1-12. Bethesda Church June 1-3. Before Petersburg June 16-18. Siege of Petersburg June 16, 1864, to April 2, 1865. Mine Explosion, Petersburg, July 30, 1864. Weldon Railroad August 18-21. Poplar Springs Church September 29-October 2. Reconnoissance on Vaughan and Squirrel Level Roads October 8. Boydton Plank Road, Hatcher's Run, October 27-28. Fort Stedman, Petersburg, March 25, 1865. Appomattox Campaign March 28-April 9. Assault on and capture of Petersburg April 2. Occupation of Petersburg April 3. Pursuit of Lee April 3-9. Moved to Alexandria April 20-24. Grand Review May 23. Mustered out May 30, 1865. Rosters:
The roster of this unit contains the names of 1721 men.

  • Company A - Ingham County
  • Company B - Washtenaw County
  • Company C - Calhoun County
  • Company D - Washtenaw County
  • Company E - Jackson County
  • Company F - Jackson County and Washtenaw County
  • Company G - Eaton County
  • Company H - Washtenaw County
  • Company I - Calhoun County
  • Company K - Washtenaw County
  • Unassigned Company - Jackson County
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