The 12th West Virginia Infantry Regiment lost 3 officers and 56 enlisted men killed or mortally wounded and 131 enlisted men to disease during the Civil War.

1862
August 30 Organized at Wheeling, W. Va. Attached to Railroad District, 8th Army Corps, Middle Dept.
October At Buckhannon
October 16 Wardensville
1863
January Moved to Winchester, Va. and attached to Milroy’s Command, Winchester, Va., 8th Army Corps
February Attached to 2nd Brigade, 2nd Division, 8th Army Corps
May At Beverly
June 13-15 Battle of Winchester
June 15-17 Retreat to Harper’s Ferry
June 30 At Bloody Run, Pa. Attached to 1st Brigade, 1st Division, Dept. of the Susquehanna
July 14-
December 10
At Martinsburg, W. Va. Attached to McReynolds’ Command, Martinsburg, W. Va.
December 10-25 Wells’ demonstration up the Shenandoah Valley. Attached to 1st Brigade, 1st Division, West Virginia.
1864
January At Harper’s Ferry. Attached to 1st Brigade, 2nd Division, West Virginia
February 1 At New Creek
April At Cumberland, Md., Webster and Beverly. Attached to 2nd Brigade, 1st Infantry Division, West Virginia
April 30-May 16 Sigel’s Expedition from Martinsburg to New Market, Va.
May 14 Rude’s Hill
May 15 Battle of New Market
May 24-June 6 Advance to Staunton
June 5 Piedmont, Mt. Crawford
June 6 Occupation of Staunton
June 10-July 1 Hunter’s Expedition to Lynchburg
June 14 Near Lynchburg
June 17 Diamond Hill
June 17-18 Lynchburg
June 18-July 1 Retreat to Charleston, W. Va.
July 12-15 Moved to Shenandoah Valley
July 17-18 Snicker’s Ferry
July 23-24 Battle of Kernstown-Winchester
August 6-November 28 Sheridan’s Shenandoah Valley Campaign
August 12 Cedar Creek
August 15 Strasburg
September 3 Berryville
September 19 Battle of Opequan, Winchester (guarding trains)
September 22 Fisher’s Hill (guarding trains)
October-November Duty at Winchester and in the Shenandoah Valley
December 19-23 Moved to Washington, D.C., then to Bermuda Hundred, Va. Attached to 2nd Brigade, Independent Division, 24th Army Corps, Army of the James
1865
January-March Duty in trenches before Richmond
March 28-April 9 Appomattox Campaign
March 28-29 Moved to front of Petersburg
March 30-31 and April 1 Hatcher’s Run
April 2 Fall of Petersburg
April 3-9 Pursuit of Lee
April 6 Rice’s Station
April 9
Appomattox Court House

Surrender of Lee and his army.

April 12-15 March to Lynchburg, Va.
April 15-19 Farmville and Burkesville Junction
April 22-25 To Richmond, and duty there
June 16 Mustered out