The Karen Huntoon Miller papers (1974-1983) consist of correspondence, resumes, newspaper articles, and skiing artifacts. Karen Huntoon Miller was a freestyle skier in the 1970s. She was women's world champion for moguls in 1974.

The Larry H. Miller papers (1985-1996) contain mainly news clippings about the National Basketball Association team, the Utah Jazz. The collection also contains newsletters from the Larry H. Miller Group.

The Lorille Horne Miller papers (1938-1991) contain correspondence, newsletters, meeting agendas, maps, and pamphlets related to the 1977 National Women's Conference in Houston, Texas. In addition, there are news clippings related to the activities and membership of the First Unitarian Church from 1938-1946.

The Patrick N. Miller collection (1960-2013) contains manuscript and memorabilia related to the University of Utah Ski Team and Miller's involvement with collegiate and national level skiing. Miller served as head coach, as president of the Rocky Mountain Intercollegiate Ski Association and as a member of the National Collegiate Athletics Association Skiing Rules Committee.

The Nancy Mitchell papers (1933-2016) contain the correspondence, business papers, organizational papers, and school papers of Nancy Mitchell (1942- ) and her family.

The Katsu and Grace Miya papers (1901-2008) consist of newspapers, notes, and various other documents regarding the Japanese internment during WWII, the 442 Regimental Combat Team, and Nisei life in the United States.

The William James Monroe scrapbooks (1947-1991) consists of three volumes containing correspondence, a list of Utah architects, photographs, and news clippings. correspondence, a list of Utah architects, and news clippings relating to William James Monroe's architectural practice in Salt Lake City. Monroe was an architect in Salt Lake City, Utah who practiced from 1946 to 1970.

The Montana Uinta Hydrocarbon Company correspondence (1906) is between B. B. Haywood of Salt Lake City, Utah, and James A. Flint of Pony, Montana, concerning elaterite and asphaltum claims in Utah.

The James and Linda Mooney papers (1991-2010) chronicle the Mooney's legal battles regarding the 1st Amendment's Freedom of Religion clause, as it applies to Native American Spirituality and peyote use. The Mooneys were involved in several court battles, at both a state and national level, trying to resolve the ambiguity of United States drug law as it applies to religious usage.

The Loren E. Morey papers (1826-1983) contain correspondence, notes, articles, publications, notebooks, pamphlets, brochures, and news clippings related to hot air balloons and rocket systems. Loren E. Morey received a Ph.D in chemistry from Columbia University in 1944. He worked for Hercules Powder Company for twenty-five years beginning in 1950. While at Hercules, he participated in the development of several military rockets including the Nike Ajax, Little John, Terrier, and Talos.

The Nicholas Groesbeck Morgan papers (1885-1997) consist of archaeological and historical materials pertaining to Utah and United States. The bulk of this collection is devoted to notable Utah/Mormon personalities and figures as well as buildings, places, etc. that are held in historical reverence concerning pioneering and the Salt Lake area.

The Mormon Women's Forum records (1987-2013) contain documents of the organization including their articles of incorporation and correspondence relating to the group. Also, there are various newsclippings relating to women obtaining the LDS priesthood, copies of the group's publication, photographs, and the restricted journal of Andrea M. Emmett (available upon her death).

The Dorothy Mortensen papers (1930-2014) contains both personal and professional materials. Included in the collection are autobiographical writings, correspondence and materials related to her work within the correspondence section of the White House staff and as the writer and editor for the President's Advisory Council on Historic Preservation.

The Moscow Silver Mines Company records (1911-1985) consist of correspondence, notes, financial materials, legal documents, certificates, news clippings, maps, and charts. The company operated in Star District, Beaver County, Utah, and included three properties, the Moscow, the Beaver Combination, and the Red Warrior. Big ore returns from the Moscow Silver Mines Company's efforts were prevalent during the 1920s-1930s, bringing boosts to nearby towns such as Milford.

The Dick Movitz papers (1947-1955) contain a Harriman Cup Races Program and the slalom event participant and time lists. Also included are two Sport newspapers, that are written in German and have to do with the 1948 Olympics.

The Ina Mae Murri papers (1977-2007) contain correspondence, newsletters and articles pertaining the Murri's life and involvement in Lesbian, Gay, Bisexual, Trans, Queer/Questioning, and others (LGBTQ+), and Mormon feminist activism.