The William "Bert" A. Lucas contains color slides of Glen Canyon between 1949 and 1951, ten years before the canyon was flooded to fill the Powell Reservoir in 1963.

The Edward Lueders photograph collection consists of portraits of various authors associated with Edward Lueders.

Alfred "Stormy" Lupus (1943-2013) was a Utah salesman who served on the board for the Utah Ski Archives with his wife, Carol Lupus. This collection consists of 22 photographs of Stormy and Carol and of Stormy participating in outdoor recreation.

The Daniel B. Luten Glen Canyon photograph collection consists of slides that were organized by Daniel Luten for a presentation encouraging the restoration of Glen Canyon. All slides were captioned by Daniel B. Luten; captions are included in this register.

The Dennis L. Lythgoe photograph collection contains family photos related to Lythgoe's work, particularly research on J. Bracken Lee.

The Betty M. Madsen photograph collection contains images of buildings, Montana, and Corrine, Utah.

Florence Jepperson Madsen (1886-1977) and Hans Franklin Madsen (1887-1971) were musicians, vocalists, and performers who taught music at Brigham Young University in the twentieth century. Members of the Church of Jesus Christ of Latter-Day Saints, the Madsens sang for and directed various church choirs and composed religious music. This collection contains photographs of the Madsen's careers, honors, families, and friends.

The photographic slide collection documents over forty years of paleonotological work at the Cleveland-Lloyd Dinosaur Quarry in Carbon County, Utah. Some of the slides were shown by the donor in the course of talks he gave about the history of the quarry, while others were collected by him to document the operations there. The slides were arranged and numbered by the donor in subject order, and that original order has been maintained.

The Magna Times was a newspaper based in Magna, Utah, first published in 1923 and published into the twenty-first century. The Magna Times/Copper Printing photograph collection contains black-and-white and color photograph prints published in and collected by Magna Times depicting newsworthy events and people in Magna, Utah and surrounding areas.

The J.R. Mahoney photograph collection consists of images of travel, rivers and dams.

The Julia Mancuso digital photograph collection consists of images of Mancuso's participation in the 2006 Olympic Winter Games in Turin, Italy as a downhill skier.

The Alice Lovina Manning photograph collection contains materials that reflect the life of Alice Lovina Manning(1877-1944) was a teacher and legal secretary who became a laywer for Union Pacific railroad. She was the fourth woman to be admitted into the Utah bar. This collection contains portraits of Manning and pictures of her descendent Alice E. Manning Whipple at a 1998 event honoring Utah women in law.

The H. Michael Marquardt photograph collection consists of images dealing with early Mormon church history, including maps, writing/documents, and grave sites of early church leaders.

William H. “Bill” Martindale (1906-1988) and Carrie Bales Martindale (1908-2002) were a married couple who lived in Iowa, Michigan, and Utah throughout their lives. The William and Carrie Bales Martindale photograph collection contains photographs of the Martindales, their friends and family, their travels, and their work at Sears Roebuck Company spanning from the 1900s to 1970s.

The Mike M. Masaoka photograph collection contains images collected by Mr. Masaoka resulting from his personal and professional life, his involvement with the Japanese American community and Japanese American issues, and his association with politicians and diplomats.

The Helen Isham Matill photograph collection consists of 1 photograph of an unidentified University of Utah Sorority. The first sorority on campus was founded in 1913.

The Shigeru Matsukawa digital photograph collection reflects Matsukawa's military service in southern Italy after the ending of the war. Photos include images of camp life, tourism and a celebration parade during the summer of 1945. The Shigeru Matsukawa collection contains digital scans only, originals were retained by the owner.

Tom Matsushita served in the United States Army, 442nd Regimental Combat Team, Company D during World War II. This collection contains digital images and copy prints of Matsushita's military service and a photograph of a 442nd Regimental Combat Team reunion in 2005.

The Melba Goff Matthews photograph collection contains scans taken from Melba Goff Matthews' scrapbook. The images in the Matthews collection reflect her time spent dancing and involvement in other activities at the University of Utah. There are also images of her brother Louis E. Goff and photos from her early career at Murray High School.