Masuo Yasui was born in 1886 in Nanukaichi, Japan, the youngest of three sons. He immigrated to the United States in 1903, where he worked on railroads with his father and brothers, who had come to the U.S. before him. In 1908, he moved to Hood River, Oregon. There, he opened a general goods store with his brother Renichi Fujimoto (1883-1965). Yasui also operated agricultural businesses as an orchardist and a grower of strawberries and asparagus. By the 1920s, he was a prominent member of the local community, and often acted as an intermediary between Japanese American and white residents of the area.

Yasui married Shidzuyo Miyake (1886-1960) in 1912; the couple had nine children.

On December 12, 1941, five days after the attack on Pearl Harbor, Hawaii, by Japan, Yasui was arrested by the F.B.I. The U.S. government alleged that awards Yasui had received from local Japanese Americans and from the Japanese government in 1935 and 1940 respectively were proof of disloyalty to the United States, and classified him as an "enemy alien," incarcerating him in a facility in Montana. He was subsequently moved to incarceration facilities in Oklahoma, Louisiana, and New Mexico. He was not released until January 1946. By that time, he had lost his properties and businesses, which the family had been forced to sell. Most of Yasui's family members were incarcerated at the Pinedale Assembly Center and then the Tule Lake Relocation Center, both of which were in California.

After his incarceration, Yasui lived in Denver, Colorado, and then in Portland, Oregon. He committed suicide in 1957.

Source: "Stubborn Twig," by Lauren Kessler (Corvallis, Oregon: Oregon State University Press), 2005.

Sagoro Asai (1880-1969) immigrated to the United States from Japan in 1904, and became an orchardist in Hood River, Oregon. He was a friend of local Japanese American businessman Masuo Yasui (1886-1957).

Sources: Vital records and biographical information on Ancestry.com; information provided by Tara Asai, Sagoro Asai's granddaughter.