The majority of this material was donated by Lawrence W. Jenkins on July 18, 1914. The published military rolls were acquired from the New England Historic Genealogical Society on February 28m, 1963 (acc 16,143). Additional material was originally arranged as MM 18.

This series includes battalion, general, division and company orders, commissions, military rolls, court martial orders and annual returns for various organizations of the Massachusetts Volunteer Militia. The majority of the correspondence and orders is from the Regiment of Artillery, in the 1st Brigade, 2nd Division, commanded by Lieutenant Colonel John Russell. Additionally, blank forms, a blank company sick report book, and a blank U. S. Volunteer Service Manual are included.