9th New York Heavy Artillery

== Regimental History and Service Record ==
* "2nd Auburn Regiment"
* "Cayuga and Wayne County Regiment"
Organized at Auburn, N.Y., as the 138th Regiment New York Infantry and mustered in September 8, 1862. Left State for Washington, D.C., September 12, 1862. Designation changed to 9th Heavy Artillery December 9, 1862. 22nd New York Battery assigned to Regiment as Company "M" February 5, 1863. Company "L" organized at Albany, N.Y., and mustered in December 4, 1863. Regiment attached to 1st Brigade, Defenses of Washington, D.C., north of the Potomac to December, 1862. 2nd Brigade, Defenses North of the Potomac, to February, 1863. 2nd Brigade, Haskins' Division, 22nd Army Corps, Dept. of Washington, to April, 1864. 3rd Brigade, Haskins' Division, 22nd Army Corps, to May, 1864. 2nd Brigade, 3rd Division, 6th Army Corps, Army of the Potomac and Army of the Shenandoah, Middle Military Division, to June, 1865. (2nd Battalion detached with Artillery Brigade, 6th Army Corps, May 31 to July 10, 1864. 1st Brigade, Hardin's Division, 22nd Army Corps, to September 23, 1864. Keim's Provisional Brigade to October 3, 1864; then rejoined Regiment.) 1st Brigade, Hardin's Division; 22nd Army corps, to June, 1865.
SERVICE.--Garrison duty in the Defenses of Washington, D.C., until May, 1864, during which time built and garrisoned Forts Mansfield, Bayard, Gaines and Foote. Relieved from garrison duty and ordered to Join Army of the Potomac in the field May 18, 1864. 
* May 18-June 12, 1864 - The Overland Campaign
** May 22-26, 1864 - Operations on Line of the North Anna River, VirginiaNot originally listed on Dyer summary
** 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 1-12, 1864 - Battles of Cold Harbor, Virginia 
*** 1st and 3rd Battalions as Infantry
*** 2nd Battalion as Artillery
** Bethesda Church June 1-3. 
** Before Petersburg June 18-19. 
** Siege of Petersburg June 18-July 6. 
** Jerusalem Plank Road, Weldon Railroad, June 22-23. 
** Moved to Baltimore, Md., July 6-8. 
** July 9, 1864 - Battle of Monocacy, Maryland
** July 12, 1864 - Action at Fort Stevens, District of Columbia
Sheridan's Shenandoah Valley Campaign August 7-November 28. Near Charlestown August 21-22, Charlestown August 29. Battle of Winchester September 19. Fisher's Hill September 22. Battle of Cedar Creek October 19. Duty at Kernstown until December. Moved to Washington, D.C., December 3; thence to Petersburg, Va. Siege of Petersburg, Va., December, 1864, to April, 1865. Fort Fisher, Petersburg, March 25, 1865. Appomattox Campaign March 28-April 9. Assault on and fall of Petersburg April 2. Amelia Springs April 5. Sailor's Creek April 6. Appomattox Court House April 9. Surrender of Lee and his army. Expedition to Danville April 17-27. Duty there and at Richmond until June. Moved to Washington, D.C. Corps Review June 8. Consolidated to four Companies June 27, 1865, and transferred to 2nd New York Heavy Artillery.
== Regimental Roster ==
== Regiment Statistical Information ==
Source 	Casualties	Remarks
Dyer 	
* 6 Officers and 198 enlisted men killed and mortally wounded 
* 3 Officers and 254 enlisted men by disease
* Total 461	None
Fox 	
* 6 Officers and 198 enlisted men killed and mortally wounded
* Total 204 (Combat Losses)
* Fox lists this unit as 9th on the list of units "sustaining greatest loss in action" (Heavy Artillery units with over 200 casualties)	None
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 763, 932, 938, 940, 941, 990, 1385)
* (Page 6)
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