Walsh brothers
The Walsh brothers, Thomas Walsh (1827 - 1900), John Greer Walsh, (1829 - 1897), Richard James Walsh (1831 - 1881), and Robert George Walsh (1841 - 1886), were supposed American merchants seen in Japanese bibliography as the founders of the Walsh, Hall and the company.
After Tokugawa shogunate Japan opened up the port to the foreign trade, the brothers established the Walsh and Company (later Walsh, Hall and Company) in Nagasaki, which became the first and most successful American trading and insurance company during the Last days of the shogunate and Meiji Restoration. They also introduced Western engineers and intellectuals to Japan under the Meiji Emperor.