This collection contains materials from the Montana Department of Public Health and Human Services (1877-2006). This collection has been intellectually integrated into one Record Group, RS 495, to help facilitate access and reduce redundancy in the Montana Historical Society (MTHS) catalog. Please read the description carefully to determine which Subgroup (Current Divisions/Boards/Predecessor Agencies) or Sub-Subgroup (Bureaus/Former Divisions) pertains to your research needs.