Tuhia he tohutoro mō tēnei wāhanga - I te tau 1947 i whiwhi pūtea a Molesworth Allen ki te ako ki Basel, Switzerland. I te taunga atu ki Malaya, ka tutaki ia ki a Geoffrey Allen, ka marena; i te whakaheke i te karahipi i Switzerland, ka noho ia ki Malaya i reira i whakangungu ai ia i te tipu tipu me te mahi i roto i te Singapore Botanic Gardens. Mai i te 1948 i haere ia ki te Tonga ki te Tonga o Ahia, ina koa ki Malaysia, Borneo me Thailand, e tirotiro ana i nga tipu me te kohikohi tauira mai i nga ngahere. Heoi, i tino mōrearea tōna mahi i te wā o te āhua ohorere o te tau 1948-1960.
i te wā i whakatūria ai e ngā kaitiaki Communist he puni ki ngā ngahere.