^Senator William Gibson had been expelled by the Country Party in September 1935. He was listed as an "Independent Country" member and continued to support the government.
This is a list of members of the Australian Senate from 1938 to 1941.[1] Half of its members were elected at the 15 September 1934 election and had terms starting on 1 July 1935 and finishing on 30 June 1941; the other half were elected at the 23 October 1937 election and had terms starting on 1 July 1938 and finishing on 30 June 1944. The process for filling casual vacancies was complex. While senators were elected for a six-year term, people appointed to a casual vacancy only held office until the earlier of the next election for the House of Representatives or the Senate.[2]
^ abcLabor Senator John Barnes was elected at the October 1937 election to a term starting on 1 July 1938, but died on 31 January 1938; Labor member Jim Sheehan was appointed to replace him on 12 July, with his term expiring at the September 1940 election, when he was defeated by UAP candidate John Spicer to fill the remainder of the vacancy, expiring on 30 June 1944.
^Gibson was expelled from the Country Party on 23 September 1935 for disloyalty.[3] He continued to support the government as an independent, but was not re-admitted to the party until 21 November 1939.[4]
^Appointed to a casual vacancy and only held office until the earlier of the next election for the House of Representatives or the Senate.[2]