Jameson Danner holds a model plane like the type his great-grandfather helped build, while he presents his ancestry project in the Dzantik’i Heeni gym on May 14, 2026. (Photo by Yvonne Krumrey/KTOO) Sixth graders in Juneau’s Montessori Borealis program recently showcased their family histories with presentations they spent months working on. It’s the capstone project for their grade level — and the presentations parallel southeast Alaska’s hist…