The Shogunate formed a mission headed by foreign affairs commissioner Mizuno Tadanori and dispatched them to Ogasawara. The mission surveyed such matters as the names and ages of the islanders and whether they were married and had children. (Ref.1) They also measured both Chichijima and Hahajima and prepared maps and true views of the islands. These true view maps recorded the names of the islands, as well as the names of places and mountains, etc., which had been given during the exploration by Shimaya in 1675 (Articles 1-3). They also depicted the location of the dwellings and fields, and scenes of islanders’ life. (Ref. 2, 3)

Mizuno explained to the islanders that the islands were part of Japanese territory and that the purpose of the mission was to develop the islands. He emphasized that no islanders would be evicted and called on them to live in harmony with settlers from the Japanese mainland, explaining the Ogasawara Islands control regulations and harbor regulations. The islanders agreed to abide by these regulations (Ref. 1, 4)

Upon receiving Mizuno’s report, the Shogunate decided the development and settlement in Ogasawara, and began recruiting applicants of settlers at Hachijojima. Due to the Shogunate’s policy that the settlers should be married couples in principle, a total of 30 people, consisting of 15 men and 15 women, have decided to emigrate, who arrived on Chichijima in August 1862, together with eight carpenters and blacksmiths. (Ref. 5)
 

Ref.1：“The matter concerning the development and revitalization of the Ogasawara Islands 2,” Zoku Tsushin-zenran (Continued Series of Complete List of Diplomatic Notes and Correspondence), Compilation by category, Miscellaneous 1289
(Repository: Diplomatic Archives of the Ministry of Foreign Affairs of Japan)

Ref.2：“A real landscape of Ogasawara, Section of Chichijima (Drawings of Chichijima & Hahajima including fishes, shellfishes and others, in the appendix to ‘The matter concerning the development and revitalization of the Ogasawara Islands’),” Zoku Tsushin-zenran (Continued Series of Complete List of Diplomatic Notes and Correspondence), Compilation by category, Miscellaneous 1299
(Repository: Diplomatic Archives of the Ministry of Foreign Affairs of Japan)

Ref.3：“A real landscape of Ogasawara, Section of Hahajima (Drawings of Chichijima & Hahajima including fishes, shellfishes and others, in the appendix to ‘The matter concerning the development and revitalization of the Ogasawara Islands’),” Zoku Tsushin-zenran (Continued Series of Complete List of Diplomatic Notes and Correspondence), Compilation by category, Miscellaneous 1299
(Repository: Diplomatic Archives of the Ministry of Foreign Affairs of Japan)

Ref.4：“The matter concerning the development and revitalization of the Ogasawara Islands 3,” Zoku Tsushin-zenran (Continued Series of Complete List of Diplomatic Notes and Correspondence), Compilation by category, Miscellaneous 1290
(Repository: Diplomatic Archives of the Ministry of Foreign Affairs of Japan, 443-44)

Ref.5：“The matter concerning the development and revitalization of the Ogasawara Islands 9,” Zoku Tsushin-zenran (Continued Series of Complete List of Diplomatic Notes and Correspondence), Compilation by category, Miscellaneous 1296
(Repository: Diplomatic Archives of the Ministry of Foreign Affairs of Japan, 743-751)

Ref.6：“A real landscape of Ogasawara, Section of Chichijima” Historical records of the Ogasawara Islands, vol. 19

Ref.7：“A real landscape of Ogasawara, Section of Hahajima,” Historical records of the Ogasawara Islands, vol. 20