Tom Shannon is a contributor to the landspeed racing community. The Tom Shannon photograph collection consisists of 1 box containing 350 color photographs depicting racing and automotive activities held at the Bonneville Salt Flats between 2001 and 2003.

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.

Cris and Ed Shearer served as volunteer emergency workers at events held on the Bonneville Speedway in the Bonneville Salt Flats, Utah. This collection contains negatives and prints documenting events such as Speed Week, the World Finals, and World of Speed held between 2002 and 2008.

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.

Kenji and Helen Shiratori Shiozawa were Japanese Americans who lived and worked in Utah, Idaho, and California. The Kenji and Helen Shiratori Shiozawa photograph collection consists of color prints, negatives, and transparencies depicting Kenji Shiozawa's work as a landscape architect; Helen Shiratori Shiozawa's work as a schoolteacher; and images of Japanese American family life through the Shiozawa and Shiratori family and friends.

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

Rocco C. Siciliano (1922-2008) was an Italian American businessman and philanthropist who was appointed to civil service under the Dwight D. Eisenhower and Richard Nixon presidential administrations. This collection consists of black-and-white and color prints and negatives depicting Siciliano's work in business and politics; the bulk of the material dates from the 1960s and 1970s.

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 William B. Smart photograph collection contains materials realted to his journalism as well as travel around the world.

The Robert Smith photograph collection contains photographs of skiers and staff at the Park City Ski Area, Utah. The collection also includes photographs taken at Brighton, Solitude, and Alta ski resorts in Utah.

Charles Donald “Don” Snow (1926-2018) was a geologist and author. In the early 20th century, Snow's family lived near the Utah quarry where Earl Douglass discovered dinosaur bones in 1909. This collection contains color photographs from the 1990s of the former family ranch and black-and-white copy prints of photographs of Neal and Snow family members.

The Snowbird Ski and Summer Resort photograph collection contains photographs on contact sheets of skiing activities and color prints of ski runs at Snowbird, Utah.

The South Valley Unitarian Universalist Society photograph collection contains three color prints documenting a meeting at a church in South Salt Lake City in 1991. All three photographs were likely taken on the same day, with two photos depicting children singing in-front of the church goers.

The Southern States Communication Association (SSCA) is a professional organization for the study and teaching of communication. This collection contains images from SSCA publications and pictures taken at SSCA conferences between 1990 and 2007.

The Sowards-Tibbals Family photograph collection mainly conisist of photos of family, gatherings, and vacations.

The Robert C. Steensma photograph collection contains photos, political cartoons, and post cards donated by Robert C. Steenma. Robert C. Steensma was a former Naval Reserve for the Naval Seabee Twelfth division in Ogden, Utah.

Page Stegner was an author and historian of the American West. The Page Stegner photograph collection contains images of the Stegner houses in Eastend, Saskatchewan, Vermont, and Idaho, as well as images of the North-West Mounted Police in the early twentieth century.