: Four Kamikawa brothers, Riichi, Mitsuiji, Masuichi and Koichi, emigrated from Japan to Fresno, California, just before the turn of the twentieth century. They married and started a merchant business, Kamikawa Brothers, which operated in Fresno, Selma, San Francisco and Del Rey, California, and in Japan. The brothers expanded the business to include banking, a hotel, grocery, restaurant, public bath, vineyard and other enterprises. During World War II, family members were interned at a camp in Arkansas. After the war many settled in New Jersey and Maryland.
Members of the Omata family -- a brother, George, and two sisters, also immigrated to California in the 1890s, though the sisters eventually returned to Japan. George established grocery and dry good stores in Hanford, California, and was successful in securing day laborers for community businesses. George's son, Robert, married Hiroko, the daughter of Masuichi Kamikawa, in 1948. Some members of the Omata family also were interned, and they too eventually settled on the East Coast.
The Matsumoto family was a well-to-do family in Japan. They were involved in the production of fertilizer and steel. Katsu (Kazu) Masimoto was the wife of Masuichi Kamikawa, and mother of Hiroko Kamikawa Omata.