1930年8月14日付の藤本廉一から安井静代への手紙の現代日本語訳。手紙の中で廉一は、フッドリバーに新しい安井ビルが建設されたこと、そして静代の夫、益男が命にかかわる病気から回復したことについて感想を述べている。廉一は、日本にいる多くの人々の近況を述べ、ビジネス事情や不況が日本経済に与えている悪影響について書いている。彼は日本で過ごした9ヶ月間と、早くアメリカに戻りたいという願望を書いている。
翻訳注：この文書は原本と英訳も掲載されている。

Letter from the Consulate of Japan in Portland to Masuo Yasui, dated 17 November 1930. The letter is printed on official consulate stationery with only Masuo's name handwritten. It is a thank you for cooperation with the survey of Japanese nationals residing locally under the jurisdiction of the Japanese government and states that the census emblem will be sent as a commemorative gift.
Translation Note: This document is also available as the original manuscript document and as a modern Japanese translation.

A draft letter by Masuo Yasui to Japanese Consul Akamatsu (Sukeyuki Akamatsu?) addressed from the Japanese Residents of Hood River. The letter thanks Consul Akamatsu for his efforts to convince Oregon State Senator George R. Wilbur of Hood River to withdraw his proposed bill to restrict Japanese from owning property in Oregon. The bill was modeled after similar legislation passed in California.
Translation Note: This document has been translated into modern Japanese and English.

Translation of a draft letter by Masuo Yasui to Japanese Consul Akamatsu (Sukeyuki Akamatsu?) addressed from the Japanese Residents of Hood River. The letter thanks Consul Akamatsu for his efforts to convince Oregon State Senator George R. Wilbur of Hood River to withdraw his proposed bill to restrict Japanese from owning property in Oregon. The bill was modeled after similar legislation passed in California.
Translation Note: This document is also available as the original document and as a modern Japanese translation.

1916年4月30日付、野地吉蔵から安井益男への書簡の現代日本語訳。野路は、妻の渡米を手配してくれた安井に感謝している。野地は1916年7月12日、ワシントン州シアトルで妻・アサヨと結婚した。
翻訳注：原文および英訳も掲載されている。

English translation of a letter from Kichizo Noji to Masuo Yasui dated 30 April 1916. In the letter, Noji thanks Yasui for his support in arranging for his wife's travel to the United States. Noji married his wife, Asayo, on the 12 July 1916 in Seattle, Washington.
Translation Note: This letter is also available as the original manuscript document and as a modern Japanese translation.

1917年２月10日付の安井益男から金三商会への手紙 。この手紙の中で安井は、カルシウムコーティングされたファンシーライス50俵の注文をし、米袋に安井兄弟の商標ロゴをステンシルすることを要求している。
翻訳注：原文および英訳も掲載されている。

English translation selection of a letter from K. Otsubo to Masuo Yasui, dated 27 June 1916. In the letter Otsubo informs Masuo that the Seattle Asahi Baseball Team wants to play a game in Hood River on July 4 and requests that Masuo negotiate with the local baseball club to make arrangements.
Translation Note: This document is also available as the original manuscript document and as a modern Japanese translation.

Letter from Masuo Yasui to Renichi Fujimoto, dated 22 July 1930. In the letter Masuo discusses Kei's illness caused by a mosquito bite and his recovery, the progress on the construction of the new Yasui Brothers Mercantile building and plans to relocate everything from the old building before it is torn down, the features and division of space in the new building, and the total cost of the project in the context of the year's recession. The letter also includes updates about the family, orchard products and business, concern about rising anti-Japanese sentiment, and a sample English letter for Renichi to use.
Translation Note: This document has been translated into modern Japanese and English.

English translation selection of a letter from Masuo Yasui to Renichi Fujimoto, dated 22 July 1930. In the letter Masuo discusses Kei's illness caused by a mosquito bite and his recovery, the progress on the construction of the new Yasui Brothers Mercantile building and plans to relocate everything from the old building before it is torn down, the features and division of space in the new building, and the total cost of the project in the context of the year's recession. Additional topics on pages not translated include updates about the family, orchard products and business, concern about rising anti-Japanese sentiment, and a sample English letter for Renichi to use.
Translation Note: This document is also available as the original manuscript document and as a modern Japanese translation.

English translation selection of a letter from Masuo Yasui to Renichi Fujimoto. In the letter Masuo gives updates on the recession and its effects on the market, comparing the economic situation to Japan. He expresses his gratitude that the family can get by with some income from farming and his hope that the economy will recover in the next year or the year after. He also provides updates about the second floor construction on the new Yasui Brothers Mercantile building and changes to the city, including state-of-the-art streetlights, the success of the Texaco station, and the construction of a post office within the next two or three years. Additional topics on pages not translated include the general economic situation and updates on church and friends.
Translation Note: This document is also available as the original manuscript document and as a modern Japanese translation.

安井益男から安井泰逸郎への1930年12月31日付けの手紙の抜粋部分の現代日本語訳。その中で益男は、剛と稔が年賀状発送を手伝ってくれている状況を描写し、今年最初の寒い夜であると伝えている。続けて、今年の不況がビジネスにどのような影響を及ぼしているのかについても述べている。益男はまた抜粋以外のページで、旅行や思い出、共通の知人の近況について書いた泰逸郎の手紙を読んでの感想を述べている。
翻訳注：原文および英訳も掲載されている。

1928年8月6日消印の岡山の安井康夫から安井益男への手紙の現代日本語訳。手紙の中で康夫は、日本にいる家族の近況を伝えている。安井敬からお金を受け取ったことを書き、思いがけない贈り物に感謝の気持ちを表す。また、アメリカから叔父に送られた絵葉書を見て喜びを表現している。泰夫は最後に、益男に手紙をくれるように頼んでいる。
翻訳注：この文書は原本と英訳も掲載されている。

Letter from Takashi Katayama to Masuo Yasui and Renichi Fujimoto, undated but written immediately following the death of Masuo and Renichi's father Shinataro in March 1931. In the letter Takashi expresses his surprise at Shinataro's sudden death and writes that he attended the funeral. He offers words of comfort and support to Masuo and Renichi and also offers to provide them with any help that he can. Takashi writes of the difficulties he has had with his retail business and apologizes for not writing sooner as he has been busy. In a postscript, he apologizes for not sending stamps back with Renichi for Kay after Renichi's visit to Japan.
Translation Note: This document has been translated into modern Japanese and English.

Transcription of a letter from Masuo Yasui to Minoru Yasui dated February 27, 1934. In the letter Masuo expresses appreciation for a letter Minoru sent about the anniversary of the death of Kay Yasui, Masuo's eldest son and Minoru's brother. Masuo reflects on Kay's death and writes that he is very proud of Minoru. He shares that he visited Kay's grave and prayed for his soul; he also returned to the grave and placed flowers there on Minoru's behalf. Masuo writes that he will send Minoru money and makes plans to see him during a visit home the following month. Masuo also writes of sending Minoru apples and shirts. In a postscript he shares the news that Shige Yamaki has gone blind, and requests that Minoru write a letter to the Yamakis.
Translation Note: This document is also available as the original manuscript document and as a Japanese translation.

A letter from Renichi Fujimoto to Masuo Yasui dated September 8, 1930. In the letter Renichi writes that he is in the process of applying for a visa to re-depart Japan and requires certain documents for authorization. He requests that Masuo send a landing certificate that Renichi had given Masuo in Seattle, which he is required to submit in order to be granted a permit from the consulate.
Translation Note: This document has been translated into modern Japanese and English.

1930年9月8日付の藤本廉一から安井益男への手紙の現代日本語訳。手紙の中で廉一は、日本を再出国するためのビザを申請中であり、その許可を得るために特定の書類が必要であると書いている。領事館から許可を得るために提出しなければならないとして、廉一がシアトルで益男に渡した上陸許可証を送るよう要請している。
翻訳注：この文書は原本と英訳も掲載されている。

English translation of a letter from Renichi Fujimoto to Masuo Yasui dated September 8, 1930. In the letter Renichi writes that he is in the process of applying for a visa to re-depart Japan and requires certain documents for authorization. He requests that Masuo send a landing certificate that Renichi had given Masuo in Seattle, which he is required to submit in order to be granted a permit from the consulate.
Translation Note: This document is also available as the original manuscript document and as a modern Japanese translation.

A letter from Fumiko to Shidzuyo Yasui, dated August 10 and postmarked 1936. In the letter Fumiko expresses her pleasure at having had the opportunity to attend a religious gathering, presumably in Hood River. She thanks Shidzuyo for her hospitality and invites her to visit Portland.
Translation Note: This document has been translated into modern Japanese and English.

1944年11月5日付の藤本廉一から安井剛への手紙の現代日本語訳。 手紙の中で廉一は、2人の妊娠の知らせに喜びを表している。納税を済ませたこと、軍に許可を申請してフッドリバーに行き、剛の仕事を手伝うつもりであることも書いている。また、知人がフランスでの戦闘で負傷したという知らせも伝えている。
翻訳注：この文書は原本と英訳も掲載されている。

A letter from Senichi Tomihiro to Masuo Yasui dated 31 December, 1934. In the letter Tomihiro congratulates Masuo for receiving an award from the Japan-America Industrial Association. He expresses his admiration for the hard work that led to Masuo's achievement and acknowledges the support of Masuo's wife and brother.
Translation Note: This document has been translated into modern Japanese and English.

1934年12月31日付の冨廣専一から安井益男への手紙の現代日本語訳。手紙の中で冨廣は、益男が日米工業協会から表彰されたことを祝福している。そして、益男の功績につながった努力への賞賛と、益男の妻と兄のサポートへの謝意を述べている。
翻訳注：この文書は原本と英訳も掲載されている。

English translation of a letter from Senichi Tomihiro to Masuo Yasui dated 31 December, 1934. In the letter Tomihiro congratulates Masuo for receiving an award from the Japan-America Industrial Association. He expresses his admiration for the hard work that led to Masuo's achievement and acknowledges the support of Masuo's wife and brother.
Translation Note: This document is also available as the original manuscript document and as a modern Japanese translation.

A letter from Renichi Fujimoto to Kay Yasui, dated August 15, 1930. Renichi requests that Kay save his Japanese books, some of which are out of print. He shares that a local bookstore has agreed to buy back Japanese books that are no longer available for a higher price than they were originally sold.
Translation Note: This document has been translated into modern Japanese and English.

1915年7月26日付の仁熊長太郎から安井益男への手紙の現代日本語訳。手紙の中で、仁熊は益男から受けた借金の返済期日が31日であることに触れている。返済期限までに返済することができないと述べ、草地氏に自分の状況を伝えて益男にローンの利払いを猶予してもらうよう頼んだとし、草地氏が益男に直接支払いをするよう手配したと述べている。翻訳注：この文書は原本と英訳も掲載されている。

A letter from Moto Karasawa to Shidzuyo Yasui expressing condolences and sorrow following the death of Shidzuyo's son, Kay. Moto expresses shock and grief at the news and shares memories of Kay as a child. Moto recounts a story of a mother who was unable to stop grieving for her dead child, preventing the child's soul from finding peace in the afterlife. Moto implores Shidzuyo not to mourn for Kay any longer and offers prayers for Kay, Shidzuyo, and the rest of the Yasui family.
Translation Note: This document has been translated into modern Japanese and English.