Kosaburo Yamamoto b 1867 and Koyoshi Yamamoto b 1889/90
1902 November – Yamamoto et Koyoshi at Palace Music Hall, London
1903 March – Yamamoto and Koyoshi , the Japanese equilibrists , remain in the programme , and continue to meet with success . The couple have lost nothing of their wonderful daring and skill , and their feats make one hold one’s breath.
1903 August – Celebrated Japanese Equilibrists. The unique feats. Palais D’Ete, Brussels. Permanent Address—10, Rue Saulnier, Paris.
1904 February – The little lady has some terribly hard work to accomplish, but she was capital in her work, and was followed attentively
1904 May – Few feats require more absolute power of balancing than those of Yamamoto and Koyoshi, young Japanese equilibrists. On a slender pinnacle of bricks the lady performer raises herself on her hands, and by an inverse movement gradually brings her feet to the narrow support on which her hands rest. Next she slowly raises herself until she stands erect, and reverses the feat. The young performers are enthusiastically applauded.
1906 December – YAMAMOTO AND KOYOSHI Celebrated Japanese Equilibrists. Unique feats. Dec. 16-31, Odeon Theater, Wurzburg. Permanent Address—Rue D’Orsel 30, Paris.
1911 April – census – boarding at 64&65 St Martin’s Lane London, Kosabro Yamamoto 44, widow, Koyoshi Yamamoto Boarder, 21 Single, Masataro Nakagawa, 52 single, Sentaro Goto, 32 married, and Kyosaku Sato 25, single, all artiste, music hall.
1921 April – census – Kosabro Gamamto, 54, widowed, equilibrist, music hall artist, employer and Koyoshi Gamamto, born 1889 in Osaka, 32, daughter, equilibrist, music hall artist. 33 Milton Street Chorlton upon Medlock.
1927 February – last mention of Yamamoto and Koyoshi in British press – at Regent Theatre Great Yarmouth.
1953 February – Kosaburo Yamamoto dies aged 86 in France