Records consist of materials generated by Montana Governor's Office during the course of regular business.

There are subgroups for each of the Legislative Assemblies from 1893-1935, including the Governor's correspondence with the legislature, State of the State messages, reports of pardons and commutations of prisoners, and lists of bills signed and vetoed.

There are subgroups for each of the governors from 1902 to 1962. These subgroups consist of general correspondence from individual constituents, organizations, and government agencies, arranged alphabetically by correspondent and topic.

The final subgroup is entitled "Agency and Special Subject Files." It consists of subject files (1889-1962) arranged by agency and by topic. The files include correspondence, annual and biennial reports, financial statements, inventories, and other materials. Of special note are the prison files which include case files, pardons, commutations, and extraditions.