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Papers of David M. Dennison, professor of physics at the University of Michigan; contain lecture notes and exam materials, correspondence, speeches, files relating to research in theoretical physics, University of Michigan and travel files.

The David M. Dennison Papers contain both the personal correspondence of the Dennison family and items relating to David M. Dennison's research and teaching while at the University of Michigan.

The first part of the collection is correspondence from 1894-1896 from James Lutheran Dennison and his wife to their son Walter Dennison, the father of David M. Dennison. One folder contains correspondence from George Dennison and his wife Nina to his brother Walter Dennison also from the 1890s.

Biographical and personal materials for David M Dennison are comprised of letters from David M. Dennison and his wife, Helen Lenette Johnson, memorial materials from David's death, home finances, and travel information. Family documents in this collection are comprised mostly of his son Edwin's Ph.D. research at the University of Michigan. Dennison's papers include various speeches, articles, and other writings about the physics he was studying, primarily focused on the later part of Dennison's time at the University. Materials from the University of Michigan include lecture notes and exams from the many physics classes Dennison taught. Documents relating to administration of the physics department and David's colleagues are also a part of this collection. Of note is David and Helen's correspondence and connection to the Niels Bohr Institute.

Audio-visual materials in the collection include photographs of David and Helen from the early 1900s through the 1970s. There are also two cassette tapes with recording of talks given by David, as well as photograph negatives and spectroscopic plates, lantern slides depicting astronomical images pertaining to his astro-physics research.

The David V. Tinder Collection of Michigan Photography consists of over 100,000 images in a variety of formats including daguerreotypes, ambrotypes, tintypes, cartes de visite, cabinet photographs, real photo postcards, stereographs, and mounted and unmounted paper prints. The collection is primarily made up of vernacular photographs of everyday life in Michigan taken by both professional and amateur photographers from the 1840s into the mid-twentieth century. In addition to supporting local history research, the collection has resources for the study of specific events and subjects. Included are images related to lumbering, mining, suburbanization; the industrialization of cities; travel and transportation; the impact of the automobile; the rise of middle-class leisure society; fashion and dress; ethnicity and race; the role of fraternal organizations in society; and the participation of photographers in business, domestic, and social life. The collection is only partially open for research.

The subject contents of different photographic format series within the Tinder collection vary, depending in part upon how each format was historically used, and the date range of that format's popularity. For example, cartes de visite and cased images are most often formal studio portraits, while stereographs are likely to be outdoor views. Cabinet photographs are frequently portraits, but often composed with less formality than the cartes de visite and cased images. The postcards and the mounted prints contain very diverse subjects. The photographers' file contains many important and rare images of photographers, their galleries, promotional images, and the activities of photographers in the field. See individual series descriptions in the Contents List below for more specific details.

Included throughout are images by both professional and amateur photographers, although those by professionals are extant in far greater numbers.

Papers of Juris Upatnieks, a University of Michigan scientist who helped to lay the foundations of holography, a photography technique that recreates the recorded objects with all of their three-dimensional optical properties. Collection includes Upatnieks correspondence with American and international scientists and companies, scientific papers, proposals and technical reports, sometimes prepared in collaboration with other scientists, as well as digitized laboratory notebooks and lantern slides illustrating his research on various subjects.

The collection documents Juris Upatnieks' scientific research and output and divided into six series: Correspondence, Subject Files, Proposals, Reports, Lantern Slides, and Laboratory Notebooks.

University of Michigan student organization formed to build and manage a student union, sponsors a variety of social and service programs and activities, includes records of building and financial committees and various activity/organization files including the University Mimes and the Union Opera (later renamed MUSKET) and scrapbooks and photographs of Union activities.

The records of the Michigan Union measure 21 linear feet and 13 oversize volumes. The records date from 1890 to 1983, although there are some collected photographs dating as early as 1884. The collection has been divided into six series: Central Files, Activity/Organization Files, General Files, Photographs, Songs, and Board of Representatives.