Amakusa Shirō | Shiro Amano | Shirō Takasu | Shirō Ishii | Shirō Fukai | Hamao Umezawa | Hamao Arata |
Hamao was born in Tokyo, the third son of the Viscount Shirō Hamao (1896–1935), who was an adopted son of the Viscount Hamao Arata, the 8th President of University of Tokyo and the 11th Minister of Education.