The 27th Michigan Infantry Regiment lost 10 officers and 215 enlisted men killed and mortally wounded and 3 officers and 204 enlisted men to disease.

Organized at Port Huron, Ovid and Ypsilanti, Mich.
April 10 Eight companies mustered in
April 12 Left State for Kentucky
April Duty at various points in Kentucky attached to 2nd Brigade, 1st Division, 9th Army Corps, Army of the Ohio
June 2 Action at Jamestown, Ky.
June 4-12 Moved to Vicksburg. Miss. and attached to 1st Brigade, 1st Division, 9th Army Corps, Army of the Tennessee
June 14-
July 4
Siege of Vicksburg. Miss.
July 4-10 Advance on Jackson, Miss.
July 10-17. Siege of Jackson
July 18-22 Destruction of Mississippi Central Railroad at Madison Station
July 23 At Milldale
August 4-30 Moved to Covington, thence to Crab Orchard, Ky. and attached to 2nd Brigade, 1st Division, 9th Army Corps, Army of the Ohio
September 10-26 March to Knoxville, Tenn.
October 10 Action at Blue Springs
October Duty at Lenoir
November 4-December 23 Knoxville Campaign
November 14 Loudon Station
November 16 Campbell’s Station
November 17-December 5 Siege of Knoxville
November 29 Repulse of Longstreet’s assault on Fort Saunders
December 6-18 Pursuit of Longstreet
December 13 Company I mustered in
January 4 Company K mustered in
January-March Operations in East Tennessee
January 22 Armstrong’s Ferry
January 24-
March 2
Advance to Morristown
March Companies I and K join regiment at Mossy Creek, Tenn.
March 17-April 5 Moved from Knoxville, Tenn., to Nicholasville, Ky.; then to Annapolis, Md.
April Attached to 1st Brigade, 3rd Division, 9th Army Corps, Army of the Potomac
May 4-June 15 Campaign from the Rapidan to the James River
May 5-7
Battle of the Wilderness
May 8-21
Spotsylvania Court House
May 10 Ny River
May 12 Assault on the Salient
May 23-26 North Anna River
May 23-24 Ox Ford
May 26-28 On line of the Pamunkey
May 28-31 Totopotomoy
June 1-12
Cold Harbor
June 1-3 Bethesda Church
June 16, 1864 – April 2. 1865 First Assault Petersburg
July 30 Mine Explosion, Petersburg
August 18-21 Weldon Railroad
September Attached to 1st Brigade, 1st Division, 9th Army Corps
September 29-October 2 Poplar Springs Church
October 8 Reconnoissance on Vaughan and Squirrel Level Roads
October 27-28 Boydton Plank Road, Hatcher’s Run
March 25 Fort Stedman
March 28-April 9 Appomattox Campaign
April 2 Assault on Fort Mahone and fall of Petersburg
April 3 Occupation of Petersburg
April 3-9 Pursuit of Lee
April 20-24 Moved to Washington, D.C.
May 23 Grand Review
June-July Duty at Washington and Alexandria
July 26 Mustered out