The Mornington Island Mission in the Gulf of Carpentaria, Australia, was a site of historical engagement between Aboriginal people and missionaries. In this paper, we apply the theoretical concepts of “domains” and the “intercultural” to the investigation of this engagement between 1914 and 1942, when the mission was overseen by the Reverend Robert Wilson. Through the examination of the removal of Aboriginal children, the establishment of a mission compound and Aboriginal camp and the inclusion of Aboriginal adults into the mission compound through production and economy, we show how mutually constituted domains operated. At the same time, the interaction between Aboriginal adults and children with missionaries within these domains was increasingly intercultural in nature. Thus, both “domains” and the “intercultural” are shown to have relevance to the historical case study. [ABSTRACT FROM AUTHOR]