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Books about Hirokichi:
Junai: Eseru to Mutsu Hirokichi (Japanese Edition) by Akiko Shimoju (1994)
Wiki information Hirokichi:
Count Mutsu Hirokichi was a Japanese diplomat and an educator in Meiji and Taishō period Japan. He was the oldest son of Munemitsu Mutsu who was Minister for Foreign Affairs and Ryōko Mutsu. He went to the U.K. to study in 1887. He became a diplomat...