Letter from Masuo Yasui in Portland to Yasui Brothers Company in Hood River, postmarked September 2, 1908. Masuo begins the letter by mentioning some other correspondence and writes that he understands the requests in a letter he received. He discusses the work he has been doing as a labor contractor and his difficulty in finding laborers to fulfill a contract for a job which is to start in two days. Masuo laments his poor planning but writes that he views this setback as an opportunity for growth and vows to find the required laborers for the job. He also expresses his disappointed that one of his brothers would not be present in Portland for a purchase of goods. Masuo reiterates his intention to work hard and addresses a number of business and financial matters. He ends the letter with an accounting of various amounts of money owed to or from a number of people. Translation Note: This document has 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 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.