He pūkōrero rongonui a Wiremu Parker (nō Ngāti Porou) i roto i ngā reo e rua. I te tau 1943 ka tū koia hei kaipāho irirangi Māori tuatahi. I tū ia ki ngā ao o te irirangi me te whakaata tae noa ki tōna matenga i te tau 1986. I whakaako hoki a Parker i te mātauranga Māori ki te Whare Wānanga o Te Ūpoko o Te Ika-a-Māui mai i te tau 1965 ki ngā tau tōmua o te tekau tau 1980. I whai wāhi ia ki ngā whakaputanga maha pērā i ngā papakupu reo Māori a Ngata, arā, i tāna Dictionary of the Maori language .