1st Maine Heavy Artillery

== Regimental History and Service Record ==
* Organized at Bangor, Penobscot County, Maine as the 18th Maine Infantry 
* August 21, 1862 - Mustered into federal service 
* Left State for Washington, D.C., August 24. 
* January 6, 1863 - Designation changed to 1st Heavy Artillery 
** Company "L" organized January, 1864, 
** Company "M" February, 1864. 
Attached to Defences of Washington August, 1862, to February, 1863. 2nd Brigade, Haskins' Division, 22nd Army Corps. Defences North of the Potomac to May, 1864. 2nd Brigade, 4th Division, 2nd Army Corps, Army of the Potomac, to May 24, 1864. 1st Brigade, 3rd Division, 2nd Army Corps, to July, 1864. 2nd Brigade, 3rd Division, 2nd Army Corps, to June, 1865. 3rd Brigade, Hardin's Division, 22nd Corps, to September, 1865.
SERVICE---Duty in the Defences of Washington, building and garrisoning Batteries and Forts. Eight Companies at Fort Alexandria, Company "E" at Batteries Vermont and Mattox, Company "K" at Batteries Cameron and Parrott, August 26, 1862, to May 15, 1864. Moved to Belle Plains, Va., May 15, 1864, as a part of Tyler's Heavy Artillery Division. 
* May 4-June 12, 1864 - The Overland Campaign
** May 8-21, 1864 - Battles of Spotsylvania Court House, VirginiaNot originally referenced on unit homepage
*** May 19, 1864 - Engagement at Harris Farm, Virginia
**** 82 killed, 394 wounded, 5 missing = total 481 
** May 22-26, 1864 - Operations on Line of the North Anna River, Virginia
** May 26-28, 1864 - Operations on Line of the Pamunkey River, Virginia
** May 28-31, 1864 - Operations on Line of the Totopotomoy River, Virginia
** June 1-5, 1864 - Battles of Cold Harbor, Virginia
Barker's Mills June 5-12. Before Petersburg June 16-19. Hare's House, Assault on Petersburg, June 18. (Sustained greatest loss of any one Regiment in any one action of the war. 635 killed and wounded out of 900 engaged.) Siege of Petersburg June 16, 1864, to April 2, 1865. Weldon Railroad June 22-23, 1864. Picket duty at Deserted House until July 23. Demonstration on north side of James River July 27-29. 
* July 12, 1864 - Action at Fort Stevens, District of Columbia 
Deep Bottom July 27-28. Duty at Hare's House until August 12. Demonstration on north side of James River August 13-20. Strawberry Plains August 14-18. Near Fort Sedgwick until September 30. Poplar Springs Church September 30-October 2. Yellow House October 1. Squirrel Level Road October 2. At Fort Sedgwick October 6-24. Boydton Plank Road, Hatcher's Run, October 27-28. Warren's Hicksford Raid December 7-12. Hatcher's Run February 5-7, 1865. Armstrong House March 25. Appomattox Campaign March 28-April 9. South Side Railroad March 29. Boydton Road and White Oak Ridge March 29-31. Fall of Petersburg April 2. Jettersvtlle April 5. Amelia Springs and Sailor's Creek April 6. Farmville April 7. Appomattox C. H. April 9. Surrender of Lee and his army. Moved to Washington, D.C., May 9-16. Grand Review May 23. Garrison Forts in the Defences of Washington from Fort Washington to Fort Mahone June 27 to September 11. Mustered out September 11 and ordered to Bangor, Me. Discharged September 20, 1865.
== Regimental Roster ==
== Regiment Statistical Information ==
Source 	Casualties	Remarks
Dyer 	
* 23 Officers and 400 enlisted men killed and mortally wounded
* 260 died of disease, etc
* Total 683	"Of all Regiments in army this Regiment sustained greatest loss in battle."
Fox 	
* 23 Officers and 400 enlisted men killed and mortally wounded
* Total 423 (Combat Losses)
* 19.2% Casualty Rate (423 Killed/2202 Enrolled)
* Fox lists this unit as: 
** 1st on the list of units "sustaining greatest loss in action" (Heavy Artillery units with over 200 casualties)
** 2nd on the list of units with losses based on "maximum percentage of enrollment" 
** 3rd on the list of units with losses based on duration of the entire term of service of the unit (1st of the Maine troops)	The heaviest loss in this arm of the service — and, also, in any regiment of the army — occurred in the First Maine Heavy Artillery, of Birney's Division, Second Corps. During its term of service it lost 23 officers and 400 enlisted men killed or mortally wounded in battle. This regiment is remarkable, also, for its large percentage of loss; for the large number of officers killed; and, for having sustained in a certain engagement the greatest loss of any regiment in any one battle. The First Maine H.A. did not take the field until May, 1864, having served the two previous years in the fortifications of Washington. Its fighting and all its losses occurred within a period of ten months.
WotRWiki Statistics	
* troops killed
** Includes troops mortally wounded
** Includes troops killed by disease
** All others are troops killed in action or under special circumstances	
== Legacy ==
== Notes ==
== Sources == 
* (Pages 932, 934, 937, 938, 939, 940, 990, 1216)
* (Pages 5, 6, 8, 11)
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