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Edmund Barton,
In office:1901 - 1903 -
Alfred Deakin,
In office:1903 - 1904 -
Chris Watson, In office: 1904
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George Reid, In office: 1904 - 1905
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Alfred Deakin, In office: 1905 - 1908
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Andrew Fisher, In office: 1908 - 1909
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Alfred Deakin, In office: 1909 - 1910
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Andrew Fisher, In office: 1910 - 1913
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Joseph Cook, In office: 1913 - 1914
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Andrew Fisher, In office: 1914 - 1915
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William Hughes, In office 1915 - 1923
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Stanley Bruce, In office 1923 - 1929
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James Scullin, In office: 1929 - 1932
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Joseph Lyons, In office: 1932 - 1939
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Robert Menzies, In office: 1939 - 1941
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Earle Page, In office 1939
