SOURCE 2026 | Program, Proceedings, and Highlights

Global Objects, Local Stories: The Donors Who Shaped the Hebeler Collection Tracy Robertson Project Mentor(s): Hope Amason, PhD This presentation explores the collectors and donors who contributed to the Hebeler Collection at Central Washington University’s Museum of Culture & Environment. Drawing on archival records, donor histories, and institutional documents, this study reconstructs the lives, motivations, and personal networks of Ellensburg community members and State Normal School faculty who contributed cultural objects in the early to mid-twentieth century. By examining these contributors as historical actors, the project highlights how their travels, educational philosophies, and personal interests informed the selection of objects intended for classroom use. These biographies reveal a network of educators and community members engaged with global cultures, often bringing international materials into the Normal School as tools for teaching and cultural exposure. It also considers how these contributions reflected broader cultural attitudes toward collecting, representation, and education during the period. Rather than centering solely on the objects themselves, this presentation emphasizes the human stories behind the collection, demonstrating how individual experiences and local relationships played a key role in shaping its scope and meaning. In doing so, it offers a more personal and contextualized understanding of the Hebeler Collection and its significance within the history of education. Late Holocene Shellfish Use and Cultural Modification at the Grissom Site (45KT301) ‡, § Carlos Rosiles, Deiondre Wallace Project Mentor(s): Steven Hackenberger, PhD Our study of freshwater mussel ( Margaratifera falcata ) from the Grissom Site (45KT301) in the Kittitas Valley aims to reconstruct environmental changes between 1,500 and 500 years ago. Radiocarbon dates for shell samples are about 500 years older than mammal bone samples due to a reservoir effect caused by older groundwater feeding the shell’s stream habitat. We are trying to date more bone samples that are directly associated with the shell samples. We assume Native Americans were collecting the shellfish for food and trading in early spring. Mussels are an indicator species for habitat shifts in the Yakima River and its tributaries. Shell age, size, and seasonal growth bands provide proxy data for water, habitat, and climate. Our first set of samples suggests that older shells are smaller due to factors that limit their growth. Some sequences of shell bands indicate periodic constraints on shell growth. The Farrell Scholarship and OUR funds have been dedicated to services from the University of Georgia and Washington State University isotope laboratories. We are expecting data for stable isotopes, specifically oxygen ( δ¹⁸ O), carbon ( δ¹³C), and strontium (⁸⁷Sr/⁸⁶Sr). These values should track changes in water chemistry and temperature due to climate change. Our data will be synthesized into a research report, and we hope our results will contribute to the broader understanding of Late Holocene climate change, including the period known as the Little Ice Age (550 to 200 years ago). Presentation Type: Poster Presentation (May 21, 9:30am–3:00pm) Keywords: Archaeology, Malacology, Climate Change, Farrell Scholarship, OUR Grant SOURCE Form ID: 132 Presentation Type: Poster Presentation (May 21, 9:30am–3:00pm) Keywords : CWU, Ethnography, Museum, Education, History SOURCE Form ID: 158

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