The George Dollinger Pyper papers (1834-1975) consist primarily of correspondence, scrapbooks, diaries, news clippings, programs, contracts, scripts, broadsides, and scores documenting George Dollinger Pyper's career as manager of the Salt Lake Theatre. Pyper served as manager of the Salt Lake Theatre from 1898 to 1929. He also served as general superintendent of the Deseret Sunday School Union and as a member of the Mormon Tabernacle Choir. Some of the materials have been digitized and are available online.
The Jack Thomas papers (1928-1973) consist of various materials regarding Warren John Jack Thomas (1882-1973), a Utah railroad worker and member of the LDS Church's Tabernacle Choir. Included are biographical materials, correspondence, choir programs, news clippings, and Kiwanis Club papers.