Twenty-five ministers served the society/church in the one hundred years it has been a part of the Territory and State of Utah. Its contribution is significant. The records of First Unitarian Church of Salt Lake City, which comprise seventy-six linear feet of shelf space, are housed in the Manuscripts Division, Special Collections, Marriott Library, at the University of Utah. The first known Unitarian sermon delivered in Salt Lake City - given by Reverend Sam Eliot on the 30 November 1890 at the Salt Lake Theatre - is one of the documents stored there. Eliot was minister of the Denver Unitarian Church and director of the Rocky Mountain Unitarian Conference; he visited Salt Lake City for the express purpose of forming a broad, non-sectarian "People's Church." The collection of historical materials (including photographs) has been processed and a register prepared. Additional sources of information are the interviews of former ministers, presidents of the board of trustees, and other prominent Unitarians whose reminiscences are transcribed and available in the Everett L. Cooley Oral History Project, Marriott Library, University of Utah.