Collection contains records of the Montana Territorial Legislative Assembly (1864-1865) including the original manuscripts of the House journal; and House and Council Committee reports, bills, and resolutions.

Collection contains records (1866) of the Montana Territorial Legislative Assembly (2nd: 1866) including the original manuscripts of the House journal; House and Council Committee reports, bills, and resolutions; and miscellany, including, notices of intent, financial records and petitions.

Collection contains records of the Montana Territorial Legislative Assembly (5th: 1868) including a report of the Select Committee on House Bill 46 and petitions.

Collection contains records of the Montana Territorial Legislative Assembly (6th: 1869) including correspondence with the Governor; a report to the Council by the Territorial Treasurer; a report of a special State Convention Committee; notes from executive sessions on appointments; and a petition.

Collection contains the records of the Montana Territorial Legislative Assembly (7th: 1871) including correspondence with Governor Benjamin Potts and Secretary James Callaway; report of the Code Commission; committee reports; bills to aid railroad construction, establish and regulate fees for sheriffs, provide for publication of certain laws, and to govern elections; portions of the journal; and petitions re county boundaries.