Twentieth Regiment Infantry

Organized at Portland and mustered in August 29, 1862. Left State for Alexandria, Va., September 3. Attached to 1st Brigade, 1st Division, 5th Army Corps, Army Potomac, to October, 1862. 3rd Brigade, 1st Division, 5th Army Corps, to July, 1865.

SERVICE -- Battle of Antietam, Md., September 16-17, 1862. Shephardstown September 19. Advance to Falmouth, Va., October-November. Battle of Fredericksburg, Va., December 12-15. Expedition to Richards and Ellis Fords December 20-30. "Mud March" January 20-24, 1863. Chancellorsville Campaign April 27-May 6. Battle of Chancellorsville May 1-5. Gettysburg (Pa.) Campaign June 12-July 24. Aldie June 17. Upperville and Upperville June 21. Middleburg June 24. Battle of Gettysburg July 1-3. Pursuit of Lee to Manassas Gap, Va., July 5-24. Bristoe Campaign October 9-22. Advance to line of the Rappahannock November 7-8. Rappahannock Station November 7. Mine Run Campaign November 26-December 2. Campaign from the Rapidan to the James May 3-June 15, 1864. Battles of the Wilderness May 5-7. Laurel Hill May 8. Spottsylvania May 8-12. Spottsylvania C. H. May 12-21. North Anna River May 23-26. Jericho Mills May 23. Line of the Pamunkey May 26-28. Totopotomoy May 28-31. Cold Harbor June 1-3. Bethesda Church June 1-3. Before Petersburg June 16-19. Siege of Petersburg June 16, 1864, to April 2, 1865. Weldon Railroad June 21-23, 1864. Mine Explosion, Petersburg, July 30 (Reserve). Six Mile House, Weldon Railroad, August 18-21. Poplar Springs Church, Peeble's Farm, September 29-October 2. Hatcher's Run October 27-28. Warren's Hicksford Raid December 7-11. Dabney's Mills, Hatchef's Run, February 5-7, 1865. Appomattox Campaign March 28-April 9. White Oak Road March 29. Quaker Road March 30. Boydton Road March 30-31. Five Forks April 1. Amelia C. H. April 5. High Bridge April 6. Appomattox C. H. April 9. Surrender of Lee and his army. March to Washington, D.C., May 2-12. Grand Review May 23. Mustered out - Old members, June 4, Regiment, July 16, 1865.

Regiment lost during service 9 Officers and 138 Enlisted men killed and mortally wounded and 1 Officer and 145 Enlisted men by disease. Total 293.

from "A Compendium of the War of the Rebellion" by Frederick H. Dyer, 1908