40th New York Infantry-- Part 1: 'The Mozart Regiment' A Regiment of Three States

From Wikipedia.

Also known as the  "Mozart Regiment" and "Constitution Guard."

During the war, this regiment had the second highest number of casualties in the Union Army, only behind the famed 69th New York Infantry out of the Irish Brigade.

They were mustered in  to service at Yonkers, New York, on June 27, 1861, sponsored by the Union Defense Committee of New York City by special  authority of the War Department.  Originally the regiment  was to be raised as the United States Constitution Guard by Col. John S. Cocks of the 2nd New York, but that organization was not completed.

With additional sponsorship by the Mozart Hall Committee, it adopted the name Mozart Regiment.  despite being a New York regiment, only the original Constitution Guard group were New Yorkers.

The regiment was completed by taking four Massachusetts companies and two from Pennsylvania.

On September  6, 1862, the 40th New York absorbed the enlisted men of the 87th New York Infantry Regiment.  Thomas Aumack was in the 87th New York.

--Old Secesh