The Milton Holmes Welling papers (1910-1920) consist of diaries and correspondence on the life and works of Milton Welling, the Utah Representative who lived in Box Elder County.

The John Mills Whitaker papers (1847-1963) consist of daily journals, correspondence, and business and professional papers, among other materials, relating to John Mills Whitaker (1863-1960). Whitaker was an educator, horticulturlist, politician, and LDS Church leader.

The Edward Morris Whitesides papers (1892-1953) contain diaries, a ledger, a school register, and minute books.

The Orson F. Whitney papers (1876-1931) consist of photocopies of the diaries, notebooks, and autobiography of Orson F. Whitney, a member of the Quorum of the Twelve Apostles for the Church of Jesus Christ of Latter-day Saints, from 1906 until his death in 1931.

The Elsie Ross Whittaker papers (1915-1947) contain materials relating to being an LDS missionary in the Eastern States Mission from 1922 to 1924, including her diary, a letter from B. H. Roberts, mission circular letters, programs, her patriarchal blessing, and a scrapbook. Elsie Ross Whittaker was born on 22 December 1893 and died in June 1971.

The Ernest L. Wilkinson diaries (1953-1977) are comprised of photocopied pages of journals kept by Wilkinson during his years as president of Brigham Young University (BYU) in Provo, Utah, as well as the time he spent following his retirement as editor of the university's centennial history. Wilkinson (1899-1978) served as BYU's president from 1951 to 1971.

The Feargus O'Connor Willden papers consist of an autobiography/diary of Feargus O'Connor Willden (1864-1878), autobiographical to 1878, then diary entries or transcription 1864-1868; family history to 1955 incorporating a typed transcription of the diary; papers related to an application for an Indian Wars veterans pension; a 1920 Indian Wars Veteran ribbon. Willden was a Utah Black Hawk War veteran and a resident of south-central Utah.

The Frederick Hoffman Wood papers (1950s-1960s) consist of a diary and loose diary pages, correspondence, clippings, brochures, and other materials that document his participation in the 1955-1956 Eggert-Hatch Expedition. The expedition was a river trip down the Green and Colorado Rivers with the purpose of making a complete film record of the river canyons before the great dams at Flaming Gorge and Glen Canyon were built.

The Eugene Woodbury diaries (1917-1919) details Woodbury's experience during World War I as a member in the American Expeditionary Forces, 4th Balloon company in France.

The Grace Atkin Woodbury papers (1884-1964) contain diaries, correspondence, notebooks, manuscripts, and memorabilia. The documents provide an intimate record of Woodbury's life and her perceptions of the world in which she lived.

The Asahel Hart Woodruff journals [photocopies] (1902-1937) detail his life. Asahel Hart Woodruff was the son of Wilford Woodruff. He was president of the LDS Church's Northern States Mission from 1902-1904, bishop of the Waterloo Ward from 1905-1916, and councilor in the Granite Stake beginning in 1916.

The Wilford Woodruff papers (1833-1898) contain a handwritten document by Woodruff regarding the successions of the Mormon Church Presidency, concerning Orson Hyde and Orson Pratt and their placement in line of succession of the LDS Church. Also included are copies of his journal as well as a revelation from 1877. Wilford Woodruff was the fourth president of the Church of Jesus Christ of Latter-day Saints (LDS Church).

The Jabez Woodward diary [photocopy] (1857-1858) was kept while he served as a missionary for the LDS Church.

The Ralf R. Woolley papers (1904-1930) consist of geographical surveys of the Green River for the purpose of determining water rights. Included are accounts of river trips by Woolley, H. Elwyn Blake Jr., and F. LeMoyne Page. Also inculded are a set of plate glass negatives that are part of the photo collection.

The Brigham Young papers (1857, 1876-1877, 1908) consist of documents relating to the religious and civic activities of Brigham Young. Included are correspondence, diaries (1837-1857), proclamations, three holograph pages from his will, and microfilm of letter books and official papers from his time as governor of Utah Territory (1849-1857). Brigham Young was the second leader of the LDS Church and was responsible for the movement of the Mormons to the Salt Lake Valley.

The Emily Dow Partridge Smith Young papers (1832-1970) is a compilation of histories, letters, and a portion of Emily Young's diary copied by relatives from original manuscripts. Emily was a polygamous wife of Joseph Smith (1843) and of Brigham Young (1845).

The John B. Young papers (1898-1901) contain Young's missionary journal and two photocopied certificates. John B. Young (1866-1946) was a convert to the Church of Jesus Christ of Latter-day Saints (LDS Church) from Scotland who settled in Rock Springs, Wyoming, in 1890. Nine years later, he returned to Scotland as a missionary and was companion to David O. McKay, who later became president of the LDS Church.

The Joseph A. Young journal (1864) details Young's appointment to "take general charge and oversight of affairs pertaining to this year's immigration" of LDS Church members from Liverpool, England, to Salt Lake City.