The Stevenson family papers (1908-1994) contains poetry and a newspaper article by members of the Stevenson family, a genealogy, and an article published in the Carbon County News in 1908 concerning Clarence Henry Stevenson and the Independent Coal and Coke Company of Kenilworth, Utah.

The LeConte Stewart papers (1880-1970s) hold materials collected or used by this noted Utah artist and University of Utah art teacher.

The Omer Call Stewart papers (1925-1989) consist mainly of personal items and published articles. Correspondence, news clippings, diaries, book reviews, articles, and student papers are included. Omer Call Stewart (1908-1991) was an an anthropologist from Utah who spent most of his professional career at the University of Colorado.

The Mark Stiegemeier papers (1973-1986) contain a scrapbook, magazine articles, and news clippings concerning his involvement in freestyle skiing. Stiegemeier was a freestyle skier during the 1970s and 1980s.

The James D. Still Mormon history collection (1834-2010) contains articles, clippings, correspondence, an index, and other research materials on Mormon history, particularly Oliver Cowdery, the writing of the Book of Mormon and the Book of Abraham, and the relationship between Masonry and the LDS Church.

The Eileen Hallet Stone papers (2004-2007) contain research files, interview transcripts, and scripts related to the documentary Water is for Fightin'.

The Marthinius A. Strand Utah skiing collection (1932-1984) contain newspaper clippings, magazine articles and newsletters. Strand is widely regarded as the father of the Intermountain skiing industry. He is a member of the National Ski Association Hall of Fame.

The Charles N. Strevell papers (1894-1943) contain correspondence, family history, essays, speeches, publications, art work, posters, pamphlets, brochures, news clippings, and other related materials. Strevell was one of the organizers of Strevell-Paterson Hardware Company and was the president for many years before his retirement in 1912. He became well known for his essay, "Dinosauropodes,"" which was published several times during the 1930s.

The Douglas R. Stringfellow papers (1945-1954) contain a photocopy of his Honorable Discharge, a copy of a 1951 speech titled "What Price Peace," and a 1954 news clipping from the Los Angeles Examiner in which Stringfellow, then a Congressman from Utah, described his participation in the capture of German scientist Otto Hahn.

The Students Against Apartheid collection (circa 1980s) consists mainly of news articles regarding apartheid and the Shanty Protest conducted by this group on the University of Utah. Some financial and legal papers are also included.

The Sugarhouse area of Salt Lake City collection (1915-1949) consists of essays, histories, personal reminiscences, genealogical records, and newspaper clippings dealing with the history of Sugarhouse. Sugarhouse is a residential and commercial neighborhood in Salt Lake City, Utah.

The Sugarhouse Garden Club records (1937-1983) contain yearbooks, news clippings, programs and awards relating to social events, flower shows, and classes hosted by the club.

The Sugarhouse Kiwanis Club records (1953-1997) consists of newsletters, correspondence, news clippings, brochures, club business papers, and financial records. The material relates to the activities of Jospeh Sehee in relationship to his participation with the club. It also contains material focused on Kiwanis International, Key Club, and Circle K.

The George and Susan Matsumura Sunada papers (1935-2001) consist primarily of Susan Sunada's research materials related to Japanese Americans in Utah and the West. George worked as a commercial artist for Sears. Susan was the Foreign Student Advisor for Utah State University, a secretary for Baugh Real Estate, executive secretary to the mayor, and a photo-journalist for the Deseret News in Salt Lake City, Utah.

The Joseph P. Surace papers (1831-2002) are comprised of periodical articles, newspaper clippings, book reviews, proceedings of masonic grand lodges and masonic society publications. The collection focuses upon the history of Freemasonry in the United States, Canada and several European countries.

The Sandra Kellogg Sutton papers (1923-1973) contain papers, correspondence, newspaper articles, brochures, notes, and drawings pertaining to the David Keith Mansion located at 529 East South Temple in Salt Lake City, Utah.

The Obert C. Tanner papers (1924-1993) consist of commencement addresses, programs, catalogs, and news clippings. Tanner was a professor, manufacturer of jewelry, and a philanthropist.