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 Allan Turner Howe papers (1975-1976) are composed of the material accumulated during Howe's term in the U.S. House of Representatives. The collection consists of material generated by the Committee on Interior and Insular Affairs and the Committee on Public Works and Transportation. Correspondence to and from constituents, and casework handled through his offices in Washington, Salt Lake City, and Cedar City is also included.

The Karl Vernon King papers (1899-1960) consist of the papers of Karl Vernon King, Creighton King, Samuel A. King, and William Henry King. The Kings were a family of Utah lawyers and politicians. Correspondence, legal papers, speeches, pamphlets, financial records, news clippings, campaign materials, diaries, and other items are included in the collection.

The Patricia Maynetta King papers (1916-2004) consist of materials relating to the presidential campaigns of Adlai Stevenson, John F. Kennedy, the resignation of Richard Nixon, and the Utah State Democratic Party. There are also two scrapbooks highlighting roadwork and road planning in Utah.

This collection contains photographs of Scott M. Matheson's family and various political endeavors.

The Nephi L. Morris papers (1870-1943) consist of materials related to Morris' political, ecclesiastical, and business affairs. Nephi Lowell Morris (1870-1943) was educated at the Brigham Young Academy and the University of Utah, served in various capacities in the Church of Jesus Christ of Latter-day Saints, and was a popular speaker on religious and political subjects.

The David Nelson papers (1983-2012) contain documents, memorabilia and news clippings spanning his tenure as an activist for the rights of Utah's LGBT community. Nelson was an activist and spokesperson for the rights of the gay and lesbian communities. He also founded the Gay and Lesbian Utah Democrats (GLUD), an organization that lobbied for the rights of, and promoted participation within, the gay community in local and national politics.

The A. Wally Sandack papers (1902-1994) consist of materials resulting from Sandack's activities as an attorney and politician in Utah.

The Sol J. Selvin papers (1937-1982) consist of certificates, biographies, legislative documents, correspondence, and news clippings concerning Solomon "Sol" Joseph Selvin (1878-1958), a former Utah Senator and businessman.

The William Treseder papers (1936-1963) are a collection of professional papers from his career in law enforcement and his activities in the Democratic Party. Treseder was a Justice of the Peace in Magna, Utah from 1928 to 1932, served as a deputy U.S. Marshal in 1933, and from 1950 to 1952 was a Utah U.S. Marshal. His personal interests included active membership in the Democratic Party in Utah, where he also served in several capacities.

The Utah elections collection (1954-1956) contain political literature, correspondence, newsletters, and lists pertaining to national and Utah political campaigns.

The Utah State Democratic Committee photograph collection contains photographs of various politicians and performers associated with the committee, including some photographs of fund raising telethons.

The Utah State Democratic Committee records (1954-2012) holds correspondence and documents regarding the committee's organization and function, such as its charter and bylaws, meeting minutes, and membership lists; documents about elections and the election process; financial records; and flyers, forms, newsletters, press releases, resolutions, and other documents regarding party-sponsored conferences and various Democratic Party groups.