Junjiro Hosokawa (1834-1923) was a scholar of Chinese classics and a jurist born in the province of Tosa.
In 1890 he was appointed member of the House of Peers, and in 1893 member of Privy Council. He was raised on the baronage in 1900.
In his youth he studied Dutch and English, and also artillery and navigation at Nagasaki and Yedo. He became the chief of Yaku Kyoku (Translation Bureau) of Kaiseikan established by the Tosa clan.
In 1871 he was sent to San Francisco where an Exhibition was to be held. After the exhibition he made a tour over the continent as far as the cities on the eastern coast. He kept a diary of the tour in Chinese classics and published a book titled Shinkohu Kiho (Journal of the first visit to a foreign country). His book tells how successfully he carried out his mission and how closely he watched things American.
The latter half of this essay is on John Reddie Black and the Nisshin Shinjishi. When the government wanted Black to quit his business and employed him as a foreign consultant, Junjiro Hosokawa visited Black and pursuaded him. Several historians affirms so. But judging from Black's letter to the British consulate, I guess it was not Junjiro Hosokawa that visited Black but another man named Hiroyo Hosokawa.