1920s–1950s The restaurant, owned by the Mui family, was established in 1922. One of the Republic's cooks, Wong Hai, had his head crushed by a
cleaver in the restaurant's doorway in 1942. Suspected of the "brutal" murder, Lock Poy reportedly died by
suicide by hanging in a
jail cell days later. Steve Woodward of
The Oregonian wrote in 2004:
1960s–present Woodward also opined, "Today's Republic Cafe and Ming Lounge is far different from the Republic of the 1950s. A customer no longer can leave a purse on the bar and later expect to find it still there." In 1991, the Republic Cafe agreed to hire the Chinatown Ambassadors, a group of three professional
bouncers who helped "patrons of eight Chinatown restaurants get from their cars to the front doors, and vice versa, safely, without the hustle of
drug dealers or
panhandlers".
The Oregonian Vivien Lou Chen called the initiative "one of the most recent and innovative ways that residents and merchants have found to police themselves", but one of the men who hired the bouncers acknowledged, "the presence of the Chinatown Ambassadors has only pushed drug dealers onto other blocks, where there is less resistance". In 1992, the restaurant hosted the first joint appearance of then mayoral candidates
Earl Blumenauer and
Vera Katz; the forum was sponsored by the
Chinese American Citizens Alliance and the Chinese Chamber of Commerce, and attended by approximately 50 people. The Republic Cafe has had several longtime staff members. Mary Sasaki worked as a cashier, waitress, and bartender for 51 years, starting on June 5, 1953. Merridy Joy Ann Johnson served as a bartender for 25 years. In 2010,
Oregon State University described a low-cost internet surveillance system being developed by Alan Mui and partners. The concept was conceived after Mui helped his father install a low-cost security system at the restaurant. A fire started in the Republic Cafe on August 22, 2017 at 5:00 pm; there were no words regarding casualties or fatalities. ==Building==