Department of Defence (1901–1921)

Information about the department's functions and government funding allocation could be found in the Administrative Arrangements Orders (AAOs).

In early AAOs, the department was responsible for Naval and Military defence and control of railway transport for defence.

[1] The Department was a Commonwealth Public Service department, staffed by officials who were responsible to the Minister for Defence.

[1] The Secretaries of the Department were Muirhead Collins (1901–1910), Samuel Pethebridge (1910–1918) and Thomas Trumble (1918‑1921).

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