Subseries 3.1 begins with Homer Yasui’s notes reflecting on the collection and its ideal disposition, including correspondence with Lauren Kessler, author of "Stubborn Twig," a book about the Yasui family. It also includes Homer Yasui's annotations to and interpretations of some of the earliest documents and photographs of the family, the Yasui Bros. company stores, and the family's ranch in Mosier. Biographical and historical essays on specific individuals are complemented by the early translation efforts of Yuka (Yasui) Fujikura and her husband, Toshio Fujikura, and others, and by Miki (Yabe) Yasui’s historical research and writing. In addition to family and store history and individual biographies, this subseries features annotated copies of Masuo Yasui’s extensive Federal Bureau of Investigation and Department of Justice files, dating mainly from 1941-1945, and collected primarily by Homer Yasui through Freedom of Information Act requests, as well as smaller such files for other Yasui Issei.