The Meghan Zanolli Holbrook papers (1995-2013) contain correspondence, articles and newspaper clippings, campaign material, and various organizational documents from Holbrook's tenure as Democratic Party chair as well as her other political and local work.

The political news clippings collection (circa 1854-1920) consists of news clippings relating to Utah's third legislature after statehood, national news regarding Utah, and general clipping regarding events that happened throughout the state.