The William Alexander Carter correspondence consist of eight separate letters regarding personal and professional matters and a receipt.

The Marcelle Carver papers (1983-1994) consist of correspondence, board meeting minutes, newspaper clippings, and other miscellaneous papers related to Carver's involvement with the Holy Cross Hospital Auxiliary Board.

The Butch Cassidy collection (1984-1986) contains manuscripts, articles and a letter that relate to the life of "Butch Cassidy" whose real name was Robert Leroy Parker,(1866-1908?). Cassidy is one of the most famous American bank and train robbers. Butch was associated with the "Wild Bunch" and "Hole in the Wall" Gangs.

The Charles Cather letter (1870) consists of one three-page letter, in photograph format, from Cather to his sister, Jinnie Cather. Cather writes of his adventures prospecting through the "Western Wildes" of Wyoming, New Mexico, Colorado, and Kansas.

The Arthur L. Chaffin papers (circa 1920-1976) contains correspondence, financial records, mining documents, and other records concerning Chaffin's owning and operating of the Chaffin Ferry and his mining career. Arthur L. Chaffin operated the ferry across the Colorado River at Hite, Utah until the site was covered by Lake Powell in the 1960s. He was also extensively involved in mining in southeastern Utah.

The Chamber Music Society of Salt Lake City records (1967-1998) provide a limited administrative overview of how the society developed and reached its current prominent level. Included are membership records, correspondence, minutes, financial information, contracts, programs, fund raising materials, news clippings, and other papers.

The Ralph Vary Chamberlin papers (1890-1969) contain correspondence, articles, essays, research and biographical materials, class records, and news clippings. Chamberlin was a biology professor at the University of Utah and wrote the centennial history of the university.

The Children's Service Society of Utah records (1884-1990s) contain correspondence, annual reports, pamphlets, newsletters, news clippings, meeting minutes, financial records, and scrapbooks documenting the activities of the society. The Children's Service Society of Utah was founded in 1883 as a free day-care nursery. In the early 1930s the nursery was closed and the society began a three-fold program including foster care, unmarried parent services and adoption.

The D. H. Christensen papers (1853-1956) consist of correspondence, family materials, mission journals, essays, news clippings, articles, and scrapbooks. David Henry Christensen (1869-1956) was an educator in Utah, a superintendent of Salt Lake City Schools, he served on the Board of Regents, was the president of Christensen Construction Company, and went on a mission and became a mission president for the Church of Jesus Christ of Latter-Day Saints (LDS Church).

The Aloysius S. Church papers (1972-1994) contain collected menus, writings, and teaching materials used by Church, a restaurant critic.

The Carol L. Clark papers (1968-2002) consist of periodicals, correspondence, articles, and other documents pertaining to her career as the Consumer Education Specialist for the Utah Attorney General's Office (1982-1985). This collection also contains documents pertaining to Clark's move to Utah's Department of Economic Development as the Women's Bureau Director (1986). The collection also contains other articles, periodicals, and brochures written by or pertaining to Clark.

The Walter Gordon Clark papers (1909-1983) consists of correspondence, consulting notes, product reports, and patent certificates pertaining to Clark's steel production company, Clarkiron, Inc. Also included are writings by Clark and a curriculum vitae.

The Classics Club records (1931- 2005) contain the organizational papers of this women's literary group based in Salt Lake City.

The Hiram B. Clawson papers consists of family correspondence from the Clawsons and Spencers, including letters from Hiram Clawson to his wife, Ellen Spencer Clawson, and letters from Orson Spencer to his children. Included are party invitations to Hiram Clawson and a few playbills from the Salt Lake Theatre. Some materials have been digitized and are available online.

The Richard Clay papers (1867-1869) contain correspondence, clippings, and the Certificate of Thanks and Honorable Service for volunteering in the 140th Regiment of Illinois Infantry.

This collection (1884) consists of a handwritten and signed letter replying to a letter from George F. Kunz regarding white topaz in Utah. Letterhead of the Salt Lake Mining Institute.

The Eunice Merrell Clifton papers (1941-1996) contain correspondence, military documents, and legal documents relating to the life of this Utah native.

The Ralph Elijah Cloward papers (1911-1967) consists of biographical information, family correspondence, articles and correspondence by Cloward on medicine, religion, the United Nations, politics, education, military philosophy, China, communism, India, the LDS Church, and Samoa. Cloward (1883-1964) was a doctor who had a great concern for the people of Samoa, as well as other Polynesian people, and their welfare.