First Dominion Museum Ethnology Expedition, 2–16 April 1919, Gisborne. • Participants: Elsdon Best, Johannes Anderson, James McDonald. The Hui Aroha has a massive undertaking and used the Poverty Bay Racing Club as a venue. Led by Āpirana Ngata, Captain William Tutepuaki Pitt, James Carroll,
Heni Materoa Carroll, and an organising committee, tradesmen and labourers transformed the racecourse into a contemporary
pā. Documentation of the Hui Aroha, included photographs taken by James McDonald of food preparation and
hāngī. Dictaphone recordings were made of
waiata, pātere ("songs of derision in response to slander"), and
karakia, but the excitement of the occasion was such that most were too busy to talk with the group from the Dominion Museum.
Second Dominion Museum Ethnology Expedition, 12 April - 8 May 1920, Rotorua. • Participants: Elsdon Best, Johannes Anderson, James McDonald.
Third Dominion Museum Ethnology Expedition, 17 March - 18 April 1921, Whanganui River. • Participants: Elsdon Best, Johannes Anderson, James McDonald, Te Rangihīroa.
Fourth Dominion Museum Ethnology Expedition ,18 March - 12 April 1923, Tairāwhiti / East Coast. • Participants: Elsdon Best, Johannes Anderson, James McDonald, Te Rangihīroa, Āpirana Ngata. == Collections ==