Nicholas Grumbach was mustered into the
U.S. service at Syracuse, N.Y., September 18, 1862, at the age of 27 under a
commission as Captain dated October 4, 1862, rank September 2, 1862; was
mustered as Major of the regiment August 23, 1964, under a commission dated
August 2, 1864, rank July 3, 1864, and mustered as Lieutenant Colonel of the
regiment at Bladensburg, Maryland, about may 11, 1865, under a commission
dated and rank that day. He also received a commission as Colonel dated
June 7, 1865 with rank the same day, but was not mustered.
Col. Grumbach, while captain, was for a
long time acting field officer of the regiment, and as such was on several
occasions in temporary commad of the regiment; notably at the battle of
Gettysburg after Col. Randall was wounded.
Col. Barnum being called to the command
of the brigade by the death of Col. Ireland on the 10th day of September,
1864, at Atlanta, Ga., Col. Grumbach as Major assumed command of the regiment
on that day, and so continued until after the arrival of the regiment at
Savannah, Ga. Before the regiment left Savanna, he received a leave of
absence and went home. He rejoined the
regiment at Goldsboro, N.C. about April 1, 1864 and from thence continued
command of until the regiment was disbanded at Syracuse.
At the close of the war Col. Grumbach
received a Brevet commission as Colonel of U.S. Volunteers, dated March 22,
1866, rank March 13, 1865 for "faithful and meritorious services since
September 1862, and particularly during the campaigns of Atlanta and
George."
After the war he was employed by the US
Postal Service in Syracuse.