The collection contains a copy of Virginia Thomson's theses about Verl Thomson and memorials and tributes to Thomson.

This collection is composed of local, national, and foreign records of Joseph McAuliffe’s involvement in 4-H. Folders include newsletters, flyers, invitations, photographs, personal documents, newspaper articles and clippings, correspondence, notes, and pamphlets.

The W. Carter Johnson Papers present a comprehensive account of ecological research spanning diverse ecosystems and geographical regions, organized into distinct series.

The Blue Jays series delves into the behavioral patterns of blue jays, focusing on caching and consumption behaviors related to acorns. Through meticulous field studies, Johnson examines how blue jays manage acorn tannins, cope with weevil-infested nuts, and contribute to forest regeneration through seed dispersal, highlighting their vital role in shaping forest ecosystems.

In the Forests/Trees series, the focus broadens to encompass broader forest ecosystems, emphasizing woodland restoration, forest succession, and management strategies. Various case studies within this series explore topics such as the impacts of natural disturbances like ice storms on forest dynamics, the effectiveness of restoration efforts in maintaining pine-oak forests, and the factors influencing tree recruitment in fragmented landscapes and riparian zones. Through detailed analyses and historical perspectives, researchers highlight the complexities of forest ecosystems and underscore the importance of ecological restoration for ensuring their long-term sustainability.

The Mortensen Ranch series offers a detailed account of land management and restoration efforts, documenting historical research, restoration projects, and visual progress through photographs and digital images, showcasing the ranch's commitment to sustainable practices. From regrowth of wooded draws to mitigation of flood impacts, the documents highlight the ranch's dedication to ecological balance and conservation excellence.

The Platte River series provides a comprehensive examination of the river's ecological, geological, and historical aspects, contributing valuable insights into its dynamics and ongoing conservation efforts. Spanning surveys, scientific research, professional activities, and historical records, this series offers foundational data on the river's islands and surrounding areas, investigating vegetation changes over time and informing management strategies for preserving its ecological integrity.

The Prairie Wetlands series focuses on wetland ecosystems within the North American prairie pothole region, addressing ecological, management, and conservation challenges posed by climate change. Studies provide insights into wetland structure and function, with a particular emphasis on specific sites and long-term dynamics, offering valuable resources for informing adaptive management strategies and conservation efforts.

The Snake River series covers extensive research and environmental studies conducted along the Snake River in Idaho, informing conservation efforts and sustainable management practices. From detailed reports on specific projects to field notes and vegetation sampling methods, this series offers a wealth of information on the river's ecosystem dynamics and management challenges.
The Rivers/Lakes series offers a wealth of research and data on various river and lake ecosystems, contributing to a deeper understanding of their dynamics and informing management strategies. Covering topics such as hydrology, vegetation, and wildlife, this series serves as a valuable resource for conservation and management efforts in aquatic ecosystems.

Material in the Russia series sheds light on scientific collaboration, research activities, and environmental initiatives in the Soviet Union, fostering international cooperation in ecological research. Key elements include correspondence detailing exchange visits, translations of scientific literature, and reports on Soviet ecology, enriching our understanding of Russian ecology and environmental science.

Beyond specific research topics, the collection also showcases the personal and professional contributions of Carter Johnson, underscoring his commitment to environmental stewardship and ecological preservation. Overall, the W. Carter Johnson Papers serve as a valuable resource for researchers, educators, and conservationists, providing a rich tapestry of ecological knowledge and environmental stewardship practices aimed at safeguarding natural heritage for future generations.

This collection is composed of one file folder of correspondence between W. Sigurd Opdahl and his wife, Goldie Opdahl while W. Sigurd worked at an airplane factory in California during World War II. It details his journey to Long Beach, California and his work in the airplane factory. She writes about the daily activities in Hayti, S.D. Also included is a letter from his daughter Lou Ellen Johnson. The letters are photocopies of the originals.

This collection consists of a leather-bound scrapbook belonging to 2nd Lt. Ward B. Bates and contains 139 documents, seventy-two maps, 263 photographs, and eighty-one picture postcards. The photographs cover Bates' time in training at his various duty stations. Some of the photographs include Bates and other officers enjoying their time on liberty before heading to the battlefield. Battlefield images are those taken by Bates as well as the personal pictures of Major Joseph Mills Hansen who was the Chief Historian of the A.E.F. Some photographs depict those dead after an assault. Documents include an assortment of U.S. Service Club membership cards and also Officer Club membership cards. The scrapbook holds Bates' honorable discharge paper from the Army National Guard. There are also numerous copies of various orders passed down to the many officers of field artillery. All orders pertained to the movement of the newly commissioned officers, including Bates. Orders came down from the War Department and would give time and place of the new duty station. Bates traveled from Ft. Dodge, Iowa, to Ft. Snelling, Minnesota. Other duty stations included Camp Logan of Houston, Texas and Camp Jackson of Columbia, South Carolina. General Order No. 23 in particular deals with Bates division once they reached Paris, France and how they were to go about setting up camp, care of personnel and supplies, and interaction with locals. There are also many newspaper clippings that document the events of World War I.

This collection is composed mainly of slides and photographs related to Gardner's research on virus diseases of plants, with a focus on wheat streak mosaic virus and tobacco mosaic virus. Also included is material related to crop injuries related to the environment and air pollution. Other material included publications related to his research.

This collection is composed of materials related to Dr. Gibbon’s research on developing fuels and chemicals from biomass as replacements for petroleum-based products. The bulk of the collection is article reprints, manuscripts, correspondence, and other material related to articles Gibbons submitted to scholarly journals. The clippings files consist of newspaper and magazine articles about ethanol and ethanol production. The photographs are mainly made up of ethanol and fermentation plants and equipment. Also included are manuscripts of Gibbon’s M.S. thesis and Ph. D. dissertation.