This material was donated by Mrs. J. Foster Smith on June 10, 1914.

The 9th Regiment Massachusetts Volunteer Infantry was organized in Boston, Massachusetts, for three years' service and was mustered in on June 11, 1861. This regiment was first intended to be numbered the 13th, but because the method of numbering was changed it became known as the 9th. On June 10, 1864 the original term of enlistment of the regiment expired; recruits and veterans were transferred to the 32nd Massachusetts Regiment. The regiment was formally mustered out of service on June 21, 1864.

This series includes an account book of the 9th Regiment Massachusetts Volunteer Militia from Port Hudson, Louisiana that details food purchased in this location.