The Service Star Legion, Salt Lake County Chapter photograph collection consists of general images of the society. The Service Star Legion was a patriotic society, which had its beginnings in Maryland during World War I (WWI). It was organized in Utah, and called that Salt Lake County Chapter, also known as the War Mothers.

The Katie Shakelford photograph collection consists of images of of Katie Shakelford racing in the U.S. National Championships and at Park City, Utah.

Shared Ministry in Utah was a coalition of Protestant denominations that was established in 1977 and disbanded in 1996. The Shared Ministry was focused on community service and providing resources to youth and college-aged students, offering programs such as summer camps and leadership training. This collection contains black-and-white and color photographs and negatives depicting events, parades, and people from Utah churches belonging to the Shared Ministry.

The Shaun A. Shelton digital photograph collection consists of Shelton skiing and with his dog during the winter.

Musician and composer Arthur Shepherd (1880-1958) was originally from Utah, but lived most of his professional life in Cleveland, Ohio. Arthur Shepherd weas a composer and professor of music at Case Western Reserve University. The Arthur Shepherd photograph collection consists primarily of personal and family photographs.

Karen Shepherd (1940-) served in the Utah State Senate from 1990 to 1992 and as representative for Utah's 2nd district in the United States House of Representatives from 1992 to 1994. The Karen Shepherd photograph collection contains photographs documenting Shepherd's campaigns, career in politics, family, and personal life.

Tracey Wendell and Leone Sorensen Shepherd photograph collection contains family portraits and candid photographs and genealogical material.

This collection contains digital-only images of the University of Utah Ski Team and member Liz Sherry skiing and at competitions between about 1999 and 2000.

Fukutaro “Frank” Shikashio (1883-1970) was born on July 19, 1884 in Fukuoke, Japan and immigrated to the United States, where he and his wife, Miyoshi Kusaba (1896-1993) raised their children in Idaho. Frank's son James Shikashio (1920-2010) served in the United States military during World War II. The Frank Shikashio digital photograph collection contains portraits of Frank, Miyoshi, and James Shikashio dating from approximately 1940 to 1970.

Saburo "Sam" Shimomura (1927-2009) was a veteran of the United States Army who was a Prisoner of War during the Korean War in the early 1950s. This collection contains 103 digital only images of Shimomura's military service dating from the 1950s and of a 2003 Veteran's Day event honoring Utah's Korean War veterans.

The Clarice Short photograph collection contains personal photos of University of Utah English professor Clarice Short, her family and friends.

Malcolm Osgood Sillars (1928-2018) was a professor of communication and administrator at the University of Utah. The Malcolm O. Sillars photograph collection contains photographs related to Sillars' research into public speech and signs, as well as photographs of a play from about 1975.

The Linda Sillito and Allen Roberts photograph collection document some moments from the early life of Mark Hoffman but primarily contain images concerning his role in the infamous "Salamander Letter" trial in Salt Lake City, Utah. All of the photographs are recent or are recent reprints with excellent detail.

The Harold F. Silver photograph collection contains stock graphs of various companies.

The Ski Utah, Inc. photograph collection consists of slides of skiing activities and various resorts.

The Robert L. Skinner photograph collection contains two images depicting unidentified musicians around the 1900s, one a photograph of a small brass band and one a print of 3 children holding instruments.

The Royal Skousen photograph collection consists of ultraviolet photographs of the Wilford Wood fragments of the original manuscript of the Book of Mormon. Skousen was the editor of the Book of Mormon critical text project and published his definitive transcript of the original manuscript in 1996.

SL-1 is a 1983 documentary film by Utah filmmakers Diane Orr and C. Larry Roberts investigating the January 3, 1961 meltdown of a nuclear reactor at the National Reactor Testing Station in Idaho. This collection contains black-and-white photographs of the event collected by Orr and Roberts during the course of their research for the film.