Tuhia he tohutoro mō tēnei wāhanga - I mahi a Hollister hei karere ki ngā Huihuinga ā-Motu o te Rōpū Reipa i te tau 1940, 1944, 1948
, me te tau 1952. I arahina e ia te miihana a te United Nations Relief Rehabilitation Association ki te Netherlands, 1945, a, i mahi ia hei kaiwhakahaere whakahaere mo te Komihana Hoover mai i te Oketopa 1953 ki te Hurae 1955. Ko ia te kaiwhakahaere o te Whakahaere Whakawhanaungatanga o te Ao mai i te Pipiri 15, 1955, tae noa ki tana wehenga i te Mahuru 13, 1957.