Rubuta ci gaba ga wannan sakin layi - A 1925 Hope Simpson ya zama jarumi. Bayan rashin nasararsa a majalisa ya dauki mukamai da dama ga kungiyoyi daban-daban, ciki har da kungiyar League of Nations, a matsayin kwararre kan batun 'yan gudun hijirar. An fara tura shi zuwa Girka don sa ido kan musayar yawan jama'a tsakanin Girka da Turkiyya a shekarar 1923. Bayan tarzomar Falasdinu da ta bazu a shekarar 1929 an tura shi zuwa yankin Falasdinu na Burtaniya a kan aikin gano gaskiya, wanda ya haifar da Rahoton Hope Simpson a shekarar 1930. A lokacin ambaliyar ruwan China a 1931
Kungiyar Al'ummai ta aika da Hope Simpson zuwa China, inda ya zama babban darektan Hukumar Kula da Ambaliyar Ruwa ta Kasa don gwamnatin Jamhuriyar China. Kazalika da daidaita taimakon 'yan gudun hijirar, ya zama mai sukar fashewar bam din jirgin saman Japan na sansanin' yan gudun hijirar ambaliyar ruwa a Shanghai, bayan faruwar lamarin na 28 ga Janairu. Da ya fita daga ritaya yana da shekaru 66, Sir John ya zama Kwamishinan Albarkatun Kasa da kuma Kwamishinan Shari'a na Hukumar Gwamnatin Newfoundland daga 1934 zuwa 1936.