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In page Yoko Ono:

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Ono was born in Tokyo City on February 18, 1933, to mother Isoko Ono (小野 磯子, Ono Isoko) (1911–1999)[1] and father Eisuke Ono (小野 英輔, Ono Eisuke), a wealthy banker and former classical pianist.[2] Isoko's adoptive maternal grandfather Zenjiro Yasuda (安田 善次郎, Yasuda Zenjirō) was an affiliate of the Yasuda clan and zaibatsu. Eisuke came from a long line of samurai warrior-scholars.[3] The kanji translation of Yōko (洋子) means "ocean child".[2][4] Two weeks before Ono's birth, Eisuke was transferred to San Francisco, California, by his employer, the Yokohama Specie Bank.[5] The rest of the family followed soon after, with Ono first meeting her father when she was two years old.[6] Her younger brother Keisuke was born in December 1936.[citation needed]