9th New York Heavy Artillery Regiment
"2nd Auburn Regiment" "Cayuga and Wayne County Regiment"

The 9th New York Heavy Artillery lost 6 officers and 198 enlisted men killed or mortally wounded and 3 officers and 254 enlisted men to disease during the Civil War.

1862
	Organized at Auburn, N.Y. and mustered in as the 138th Regiment New York Infantry. Attached to 1st Brigade, Defenses of Washington, D.C., north of the Potomac
December 9	Designation changed to 9th Heavy Artillery. Attached to 2nd Brigade, Defenses North of the Potomac
December	Garrison duty n the Defenses of Washington, D.C. during which time built and garrisoned Forts Mansfield, Bayard, Gaines and Foote.
1863
February 5	22nd New York Battery assigned to Regiment as Company M. Attached to 2nd Brigade, Haskins' Division, 22nd Army Corps, Dept. of Washington
December 4	Company L organized at Albany, N.Y., and mustered in
1864
May	Attached to 3rd Brigade, Haskins' Division, 22nd Army Corps
May 18	Relieved from garrison duty and ordered to Join Army of the Potomac in the field. Attached to 2nd Brigade, 3rd Division, 6th Army Corps, Army of the Potomac
May-June	Rapidan Campaign
May 26	North Anna River
May 26-28	On line of the Pamunkey
May 28-31	Totopotomy
May 31 to July 10	2nd Battalion detached with Artillery Brigade, 6th Army Corps
June 1-12	Cold Harbor
June 1-3	Bethesda Church
June 18-19	Before Petersburg
June 18-July 6	Siege of Petersburg
June 22-23	Jerusalem Plank Road, Weldon Railroad
July 6-8	Moved to Baltimore, Md.
July 9	Battle of Monocacy, Md.
July 10	2nd Battalion detached with 1st Brigade, Hardin's Division, 22nd Army Corps
August 7-November 28	Sheridan's Shenandoah Valley Campaign. Atached to Army of the Shenandoah, Middle Military Division
August 21-22	Near Charlestown
August 29	Charlestown
September 19	Battle of Winchester
September 22	Fisher's Hill
September 23	2nd Battalion detached with Keim's Provisional Brigade, 22nd Army Corps
September 23	2nd Battalion rejoined Regiment.
October 19	Battle of Cedar Creek
October-December	Duty at Kernstown
December 3	Moved to Washington, D.C. then to Petersburg, Va.
December-April	Siege of Petersburg, Va.
1865
March 25	Fort Fisher, Petersburg
March 28-April 9	Appomattox Campaign
April 2	Assault on and fall of Petersburg
April 5	Amelia Springs
April 6	Sailor's Creek
April 9	Appomattox Court House. Surrender of Lee and his army.
April 17-27	Expedition to Danville
May-June	Duty at Danville and at Richmond
June	Moved to Washington, D.C. and attached to 1st Brigade, Hardin's Division; 22nd Army corps
June 8	Corps Review
June 27	Consolidated to four Companies , and transferred to 2nd New York Heavy Artillery

9th New York Heavy Artillery Regiment "2nd Auburn Regiment" "Cayuga and Wayne County Regiment"

9th New York Heavy Artillery Regiment
"2nd Auburn Regiment" "Cayuga and Wayne County Regiment"