William C Crume (25/7/96-~October 1898)
Served as a Captain from 1896-1898. Served as a Major in 1898. Acting commander of the WADF from Oct-Dec 1898 with the rank of Lieutenant Colonel.
Vernon L Beer (26/10/00-1/7/03)
Continued to serve in the unit until October of 1903.
James C. Hawker (25/2/93-27/8/93)
From the South Australian Permanent Force. Leased to WADF for 6 months.
Hector H Harvest (30/3/93-31/10/96)
Edward H S Calder (1/11/97-31/1/99)
Previously was a captain in the Royal Artillery.
Hatherley G. Moor (12/7/99-14/10/99)
Previously was a captain in the Royal Artillery. Had previous service in the Mashonaland War of 1897. Served in the 2nd Boer war as the leader of the 1st WAMI with the rank of Major where he was killed in action at the Battle Of Palmietfontein 19/7/00. He was the highest ranking officer of the WADF to be killed while at war. He was awarded 2 War Medals.
John H Hurst (20/2/99-1/7/03)
Previosuly served in the Perth Artillery from 1896-1899 as a Lieutenant. Continued to serve in the unit after it transferred to federal control. He transferred to New South Wales in 1904