The Rosezella Dalton Hardy papers (1912-1983) consists of diaries which Hardy kept throughout her life, along with notebooks, news clippings, and miscellaneous documents. Rosezella Dalton Hardy was born in Roy, Utah, attended the Smithsonian Business College in Ogden, and served a mission to the Eastern States for the LDS Church from 1919 to 1923.

The Trent Harris papers (1960s-2020) contain his original screenplays, research, correspondence, and ephemera. There are also screenplays by other writers. Trent Harris is a Utah documentarian and independant film maker, whose projects include the famous Beaver Trilogy, Rubin and Ed, and the cult classic Plan 10 from Outer Space.

The Thomas J. Harvey papers (1915-2002) contain research files related to Zane Grey, John Ford, and Monument Valley, including photocopies, correspondence, shooting schedules, interviews, newsclippings, brochures, and pamphlets.

The James Taylor Harwood papers (1892-2001) consist of original and photocopied materials pertaining to Harwood (1960-1940), his artistic profession, and his personal life. Included in the collection are works of art, correspondence, biographical information, poetry, exhibition catalogs, diaries, notebooks, news articles, and other materials.

The Ruth Harwood papers (1911-1973) contains correspondence, writings, artwork, poetry, notes, pamphlets, programs, news articles, and certificates. Although most of the materials are by or about Ruth Harwood, the collection also contains materials Ruth collected herself concerning her family, friends, and other writers and artists.

The Elizabeth R. Hayes papers (1881-2007) consist of diaries, correspondence, teaching material, scrapbooks, personal and family papers, and an undated manuscript. Hayes is a former University of Utah dance director and professor emerita of the University of Utah.

The Lillian Hayes papers (1970-1995) contains correspondence, pamphlets, project data, news releases, and news clippings pertaining to the Central Utah Project (CUP).

The William D. Haywood collection consists of a postcard and a news clipping providing biographical information regarding one of the Industrial Workers of the World's (IWW) founders.

The Craig Hibberd collection on cold fusion (1989-1992) contains newspaper and magazine articles about cold fusion research conducted by B. Stanley Pons and Martin Fleischman at the University of Utah in 1989.

The Jerry Higginson papers (1963-1972) contain newspaper clippings, pamphlets, and handouts related to the 1972 Republican National Convention.

The Hope A. Hilton papers (1815-1999) contain diaries, correspondence, research files, family histories and genealogy, news clippings, and manuscripts. Hope Hilton (1924-1999) was a writer and community activist who, along with her husband, organized the Middle East Foundation, a charitable organization devoted to helping students from the middle east obtain an education in the United States.

The James A. Hogle papers (1925-1950) contain materials relating to the J. A. Hogle and Company (established 1915) and its mining and stock interests.

The James R. Holbrook papers (1966-2019) consist primarily of clippings, correspondence, greeting cards, and writings. Holbrook is a clinical law professor at the University of Utah and served during the Vietnam War.

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 Ronald L. Holt papers (1860-1994) consist of the papers Holt used in writing his dissertation, entitled Beneath These Red Cliffs: An Ethnohistory of the Utah Paiutes, and its subsequent publication in 1992. Primary and secondary source materials are included.

The Rosemary Holt papers (1980-1997) contain materials focusing on the implantation of the artifical heart in humans. Included are correspondence, reports, minutes and agendas, news articles, and other papers. Holt (b. 1932) was a citizen member of the Institutional Review Board for the artificial heart at the University of Utah.

The I. Owen Horsfall papers (1910-1939) contain correspondence involving members of Horsfall's family, plus a few newspaper clippings and a homemade card commemorating a birth. Ira Owen Horsfall (1885-1971) was a faculty member at LDS College, then at Cornell University. He became president of Snow College in 1933. In 1937 he was appointed director of the Extension Division at the University of Utah.