The 149th New York Infantry Regiment lost 4 officers and 129 enlisted men killed or mortally wounded and 78 enlisted men to disease during the Civil War.

It is honored by a monument at Gettysburg.

Six members of the regiment earned the Medal of Honor.

Organized at Syracuse, N.Y.
September 18 Mustered in under Lieutenant Colonel John Strong and Major Abel G. Cook
September 23 Left State for Washington, D.C. Attached to 2nd Brigade, 1st Division, 12th Army Corps, Army of the Potomac for duty in the Defenses of Washington, D. C.
September 30 At Bolivar Heights, Va.
October Attached to the 4th Brigade, 1st Division, 12th Army Corps, then 3rd Brigade, 2nd Division, 12th Army Corps, Army of the Potomac. During the month Lieutenant Colonel Strong was forced to leave the regiment due to illness, eventually resigning in March of 1863. Major Cook took command of the regiment.
October 4 Henry A. Barnum was commissioned colonel of the regiment. He had been seriously wounded at Malvern Hill as major of the 12th New York Infantry Regiment, and was not able to join the 149th in the field until January of 1863. Major Cook continued in command until then.
November 9 Reconnaissance to Rippon, W. Va.
December 2-6 Expedition to Winchester
December 10-15 March to Fredericksburg, Va.
December At Falmouth, Va.
January 20-23 “Mud March”
April Colonel Barnum was forced to temporarily leave the field due to ongoing problems with his wound. Major Cook resumed command.
April 27-May 6 Chancellorsville Campaign
May 1-5
Battle of Chancellorsville

The regiment was commanded by Major Cook, and lost 15 killed, 68 wounded and 103 captured or missing. Lieutenants Davis and Breed were killed, and Captain Robert Hopkins captured.

Major Cook was severely wounded in the foot, disabling him from further service. He had received a commission as lieutenant colonel in March but had not yet mustered. He eventually was discharged in July of 1864 due to his wound, and was brevetted colonel.

June 5 Lieutenant Colonel Charles B. Randall, formerly 12th New York Infantry, was commissioned and assumed command of the regiment.
June 11-July 24 Gettysburg Campaign
July 1-3
Battle of Gettysburg

The regiment was commanded by Colonel Henry A. Barnum, who was forced to give up command due to illness on the night of the 2nd. Lieutenant Colonel Charles B. Randall took over until he was wounded in the shoulder and lung on July 3. Captain Nicholas Grumbach, Jr. then took command of the regiment. The 149th brought 319 men to the field, losing 6 killed and 46 wounded.

From the monument:

5 p.m. July 1, 1863, occupied position near Little Round Top. 4 a.m. July 2, move here, built these works and defended them July 2d, and 3d.

A bas-relief on the monument depicts Color Sergeant William C. Lilly mending the shattered staff of the colors while under fire. The colors received over 80 holes. From the tablet:

Flag was planted in works. Shot down and mended under fire.

July 5-24 Pursuit of Lee to Manassas Gap, Va.
Juky 14 Captain Hopkins was parolled and returned to the regiment.
August 6 Colonel Barnum was forced to temporarily give up command of the regiment and return to Washington for ongoing treatment for his wound.
September 24 Duty on line of the Rappahannock
September 24-
October 3
Movement to Bridgeport, Ala. and attached to the Army of the Cumberland
September 29 Lieutenant Colonel Randall resumed command of the regiment after his Gettysburg wound
October 25-28 March along line of the Nashville & Chattanooga Railroad to Lookout Valley, Tenn.
October 26-29 Reopening Tennessee River
October 28-29
Battle of Wauhatchie, Tenn.

Color Sergeant William C. Lilly was mprtally wounded.

November 10 Colonel Barnum rejoined the regiment at Wauhatchie
November 23-27 Chattanooga-Ringgold Campaign

Private Philip Goettel earned the Medal of Honor for capturing a flang and a battery guidon.

November 23-24
Battle of Lookout Mountain

The regiment lost 10 killed and 64 wounded. Four members of the Regiment earned the Medal of Honor at Lookout Mountain. Colonel Barnum for “although suffering severely from wounds, he led his regiment, inciting the men to greater action by word and example until again severely wounded.” First Sergeant Norman F. Potter and Private Peter Kappesser for capturing a Confederate flag (a total of five were captured by the regiment), and Sergeant John Kiggins of Company D, who “waved the colors to save the lives of the men who were being fired upon by their own batteries, and thereby drew upon himself a concentrated fire from the enemy.”

November 25 Mission Ridge
November 27 Taylor’s Ridge, Ringgold Gap
December Duty at Bridgeport, Ala.
December 23 Colonel Barnum was detailed to convey the captured flags from Chattanooga to the War Department at Washington. His wounds continued to trouble him, and he was placed on recruiting service. Captain Hopkins took command of the regiment during Colonel Barnum’s absence.
April, Atached to 3rd Brigade, 2nd Division, 20th Army Corps, Army of the Cumberland. Captain Hopkins was promoted to major ranking to January 20.
May 2 Major Hopkins left the regiment for the hospital, and redigned on July 3.
May 3-
September 8
Atlanta Campaign

The regiment began the campaign with 380 men, losing 136 killed and wounded in the campaign.

May 8-11 Demonstration on Rocky Faced Ridge
May 14-15 Battle of Resaca
May 19 Near Cassville
May 22-25 Advance on Dallas
May 25 New Hope Church
May 26-June 5 Battles about Dallas, New Hope Church and Allatoona Hills
June 10-July 2 Operations about Marietta and against Kenesaw Mountain
June 11-14 Pine Hill
June 15-17 Lost Mountain
June 15 Gilgal or Golgotha Church
June 17 Muddy Creek
June 19 Noyes Creek
June 22 Kolb’s Farm
June 26 Colonel Barnum rejoned the command,
June 27 Assault on Kenesaw
July 4 Ruff’s Station, Smyrna Camp Ground
July 5-17 Chattahoochie River
July 19-20
Peach Tree Creek

The regiment lost 17 killed, 25 wounded and 10 missing, including Colonel Barnum, wounded by a shell fragment, and Lieutenant Colonel Randall and Captain David J. Lindsey, who were killed. Sergeant William H. Crosier of Company G earned the Medal of Honor when, “Severely wounded and ambushed by the enemy, he stripped the colors from the staff and brought them back into the line.”

July 22-August 25 Siege of Atlanta
August 23 Captain Nicholas Grumbach was promoted to major dated August 2
August 26-
September 2
Operations at Chattahoochie River Bridge
September 2-November 15 Occupation of Atlanta
September 10 Colonel Barnum took over brigade command with the death of Colonel Ireland. Major Grumbach took command of the regiment.
October 26-29 Expedition from Atlanta to Tuckum’s Cross Roads
November 9 Near Atlanta
November 15-December 10 March to the sea
November 28 Near Davidsboro
December 10-21 Siege of Savannah
December Major Grumbach temporarily left the regiment on a leave of absence to returned home. Captain Henry Burhans commanded the regiment in Major Grumbach’s ansence.
January to April Campaign of the Carolinas
March 16 Averysboro, N. C.
March 19-21 Battle of Bentonville
March 24 Occupation of Goldsboro

Major Grumbach returned and resumed command of the regiment.

April 9-13 Advance on Raleigh
April 14 Occupation of Raleigh
April 26 Bennett’s House. Surrender of Johnston and his army.
April 29-May 19 March to Washington, D.C., via Richmond. Major Grumbach was promoted to lieutenant colonel and Captain Henry Burhans to major.
May 24 Grand Review
June 12 Mustered out under Colonel Nicholas Grumbach, who had been promoted on June 7. Captain Burhans was promoted to major. Veterans and Recruits transferred to 102nd New York Infantry.