The State Records Office website provides an overview of the Department:
'In 1909, the Aborigines and Fisheries Departments were amalgamated into one agency, the Department of Aborigines and Fisheries. This was partly due to financial constraints and partly due to the expediency of running as one the two departments whose interests lay mainly in the northern part of the State. After World War I, the Department was abolished and its functions pertaining to Aboriginal affairs south of the 25th parallel, as well as to fisheries throughout the State, were taken over by the Fisheries Department. Charles Frederick Gale was appointed the second Chief Protector of Aborigines on 1 October 1908. He undertook this position together with that of the Chief Inspector of Fisheries. In 1911, Frederick Aldrich was appointed Chief Inspector of Fisheries and Gale's duties were limited to that of Chief Protector of Aborigines. Gale was dismissed from office in 1915 at an age of 54, ostensibly as an 'excess officer' and was vindicated by a Royal Commission appointed to inquire into his dismissal. Auber Octavius Neville (Secretary of the Immigration Department since 1911) was appointed as Gale's successor on 7 May 1915.'
The appointment of Rufus H. Underwood MLA as Minister for Aborigines in November 1914 had a direct impact on the funds available to north-west missions. He was elected to represent the Pilbara for the Australian Labor Party in 1906 and was critical of the effectiveness of missionsin the Kimberley, removing their subsidies in December 1914. In the the south of the State, missions for children continued to receive funding.