Colonel Henry Bohlen (August 7, 1861 – April 28, 1862, promoted to brigadier general) Colonel Francis Mahler (April 1862 – July 1, 1863, killed at Gettysburg) Major August Ledig (July 1, 1863 – March 8, 1864, assumed command after Mahler wounded at Gettysburg) Lt.

Charles Saalmann (March 1, 1863 – May 28, 1865, detached from regiment as Acting Commissary of Subsistence to Third Brigade,First Division, Twentieth Corps on January 1, 1864, participated in General Sherman's Atlanta and Savannah Campaigns, resigned at close of war).

Philip T. Schopp (August 27, 1861 – September 14, 1862, promoted to colonel) Roderick Theune (June 26, 1862 – December 28, 1863, resigned) Company E – Capt.

Richard Ledig (March 1, 1862 – November 3, 1864, discharged for wounds received at Second Bull Run) Company G – Capt.

[citation needed] Winter of 1861–1862 After arriving in the nation's capital, the 75th Pennsylvania crossed the Potomac by way of the Long Bridge and went into camp near Roach's Mills on Four Mile Run.

On November 22, the regiment participated in the review of the Army of Potomac at Bailey's Cross Roads by President Lincoln and General McClellan.

[citation needed] Shenandoah Valley Operations Beginning on March 10, 1862, the 75th Pennsylvania served as forward guard during the advance on Manassas, Virginia.

[5] The accident was described as follows: On the 15th [the regiment] was ordered to cross the Shenandoah, and move to Winchester, in pursuit of Stonewall Jackson's force then confronting Banks.

Scores of knapsacks covering the surface of the water were all that was visible of the unfortunate men as they floated, thus burdened, in the river.

After leaving Petersburg, the troops endured a grueling march, during which they passed through Moorefield, before they eventually emerged into the Shenandoah Valley.

In pursuit of rapidly retreating Confederate troops, they marched south through the valley passing through Strasburg, Woodstock, Mount Jackson and New Market, Virginia.

[citation needed] On June 26, the 75th Pennsylvania was placed within the Second Brigade of the Third Division of the newly formed First Corps under the command of Major-General Sigel.

During the skirmish at Freeman's Ford, which is considered part of the First Battle of Rappahannock Station, Brigadier General Bohlen, the original commander of the 75th Pennsylvania, was killed by enemy fire.

On August 29, the regiment was thrown forward against the forces of Confederate Generals Ewell and Jackson about a mile east of Groveton.

[13] General Carl Schurz, in his report on the engagement, observed, "The conduct of the Seventy-fifth Pennsylvania, which displayed the greatest firmness and preserved perfect order on that occasion, deploying and firing with the utmost regularity, deserve[s] special praise."

When a Confederate battery opened, the men were forced to seek cover in a ravine about 100 yards behind the position they had previously occupied.

[citation needed] ChancellorsvilleIn January, 1863, the 75th Pennsylvania participated in General Burnside's failed second advance, the infamous "Mud March.".

The men were positioned in a clearing astride the Chancellorsville Turnpike in the spot where it joined the Orange Court House Plank Road.

[citation needed] On May 2 Union commanders received reports of a large body of Confederate troops marching rapidly to the west.

Due to the confusion and the thickness of the undergrowth surrounding the area, several groups of men became separated from the main force.

However, a Confederate flanking maneuver and the collapse of adjacent regiments exposed the men to an enfilading fire that cut large gaps in the ranks.

For such was the decimation in its ranks that the little band of men, numbering but fifty-two survivors, evoked the tender sympathy of troops of the emergency corps, whom we passed drawn up in line as we went through the village of Middletown while on the march in pursuit of General Robert E. Lee's retreating army ...

These troops viewed with amazement the passing column of battle scarred men ... which in themselves practically constituted the remnant of this regiment as it emerged from the battlefield of Gettysburg.

In a complex movement that entailed several changes of trains and engines, the troops passed through Washington, D.C., Harper's Ferry, Maryland, Grafton, West Virginia, and Columbus, Ohio, before arriving in Indianapolis, Indiana.

In the early morning hours of October 29, the regiment engaged in a rare night battle near Wauhatchie, Tennessee.

According to Lieutenant Steiger, the regiment "participated in all the movements and fighting of the division around Chattanooga, culminating on the 25th in carrying Missionary Ridge and establishing the complete rout of the enemy.

"[24] On November 28, the regiment, as part of the Eleventh Corps, was ordered to proceed to the relief of General Burnside, who was under siege at Knoxville, Tennessee.

After a difficult winter march, which took the troops eastward through Cleveland, Sweetwater, Philadelphia, Loudon, and Unitia, they arrived in Louisville, Tennessee, on December 5.

Of this engagement, Lieutenant Steiger reported: At the battle of Franklin, Tennessee ... where the Southern Army, under the command of General Hood, received a disastrous check in its advance upon Nashville, a mounted detachment of the Seventy-fifth Regiment occupied the town, and companies A, C, F, G, H, I and K ... were encamped at Fort Granger, on the north bank of the Harpeth.

Company E, however, under the command of Lieutenant Wiegand, which had for some time been stationed at a point several miles south of the town on the Tennessee and Alabama Railroad, was captured by the advancing rebel army ...This unfortunate episode entailed a loss of one commissioned officer and about thirty enlisted men, who, after several months' confinement as prisoners of war, were released on parole and sent to their homes.