Digitized selections from a larger collection that documents the lives and activities of three generations of the Yasui family, particularly the first generation (the Issei) who immigrated from Japan to Oregon in the early 1900s, and the second generation, the Nisei. Major topics represented the collection overall include the experience of the Issei -- Masuo Yasui, Shidzuyo (Miyake) Yasui, and Renichi Fujimoto -- as immigrants to the United States; the family's business and community activities in Hood River, Oregon, through 1942; family members' experiences of forced removal and incarceration during World War II; the Nisei's advocacy for redress after the war; and extensive research on family and Japanese American history. The 150 digitized items that are viewable in OHS Digital Collections consist of diary entries by Masuo Yasui and Renichi Fujimoto, and correspondence among various family members, as well as to and from other correspondents outside the family. Some of these materials were written in English, and others in a pre-World War II script that is distinct from modern Japanese. Each digitized item is accompanied by translations into English, modern Japanese, or both.

The 150 digitized selections are a small portion of the overall collection, which consists of just under 20 cubic feet of material, and is available for use onsite at the Oregon Historical Society Research Library. A guide to the full collection is viewable in Archives West.

Most of the materials in the collection overall date from 1910-1995, and consist of correspondence, personal papers, extensive historical research, and photographs. Approximately 20 percent of the material is written in pre-World War II Japanese script. Correspondence in the collection includes letters of the Issei generation, but predominantly consists of material to or from the Nisei -- siblings Kay, Ray (Tsuyoshi), Minoru, Michi, Roku, Shu, Homer, and Yuka -- from youth through late adulthood, depending on the individual. The correspondence contains many letters exchanged among the family members, including incarceration-era correspondence. It also includes occasional letters from family members in Japan, and business correspondence of the Yasui Bros. stores operated by Masuo Yasui and Renichi Fujimoto. Personal papers in the collection consist of diaries and notebooks; immigration and identification papers; documents relating to day-to-day life, finances, and family members' education; materials related to the Yasui Bros. stores; poetry, essays, and articles by family members; and ephemera. Photographs include early images relating to the family's life and business operations in Hood River, as well as later images of the Nisei in their adult lives, but primarily depict travel and events related to advocacy work by Homer Yasui and his wife, Miki (Yabe) Yasui, in the latter 20th century.

A substantial portion of this collection consists of extensive research materials compiled or written by Homer Yasui and other family members about topics including Yasui family history, other Japanese Americans in Oregon, government incarceration of Japanese Americans during World War II, and Japanese American history broadly. These materials include translations and annotations of family documents; correspondence and news clippings; biographical notes and recollections; census extracts and other data on Japanese Americans in Oregon; copies of incarceration-era government files on Masuo Yasui and other family members; and essays, articles, newsletters, editorials, and press releases. The collection also includes a significant quantity of material related to Homer Yasui and Miki (Yabe) Yasui's advocacy and educational work, and their pilgrimages to incarceration camp sites.

Personal diary of Masuo Yasui recording his immigration from Japan to the United States in 1903, his journey to Montana and his work on the railroads there with his brothers, Taiitsuro Yasui and Renichi Fujimoto.

Diary written by Masuo Yasui from 1906, with daily entries of his time in Portland. The diary was pre-printed with space for two dates per page, entries are written in Japanese. Topics covered include his day to day business, his work as a houseboy, going to school, and reactions and local response to the San Francisco earthquake. Selected entries have been translated into modern Japanese and English.

Diary written by Masuo Yasui from 1908, with daily entries of his time in Portland. The diary was pre-printed with space for one day per page, entries are written in Japanese. Topics covered include his day to day business, his work facilitating employment for other Japanese immigrants, and the beginnings of the Yasui Brothers Store in Hood River, Oregon. Selected entries have been translated into modern Japanese and English.

Diary written by Masuo Yasui from 1912, with daily entries. The diary was pre-printed with space for one day per page, entries are written in Japanese. Topics covered include his day to day business, his work facilitating employment for other Japanese immigrants, his courtship of Shidzuyo Miyake (later Yasui) and arrangement of her immigration to the United States from Japan, and his dealings with her brothers. Selected entries have been translated into modern Japanese and English.

Diary written by Masuo Yasui from 1923, with daily entries. The diary was pre-printed with space for one day per page, entries are written in Japanese. Topics covered include his day to day business and family life, his grief following the death of his daughter Yuki in 1922, the response of the local Japanese community to an earthquake in Japan, reflections on the Oregon Alien Land Law, and the birth of his son Shu (who later changed his name to Robert). Selected entries have been translated into modern Japanese and English.

Diary written by Renichi Fujimoto from 1913, with daily entries. The diary was pre-printed for the year 1911, with space for one day per page but not written in until 1913. Entries are written in Japanese, and some entries have additional pages glued in. Topics covered include his support of his brother Masuo Yasui and his wife Shidzuyo, the business operations of the Yasui Brothers Company, the establishment of the Japanese Savings Association of Hood River, and his reflections on personal struggles and current events. Selected entries have been translated into modern Japanese and English.