^In 1931 2 NSW Senators walked out of the Labor party to join Lang Labor
This is a list of members of the Australian Senate from 1929 to 1932.[1] Half of its members were elected at the 14 November 1925 election and had terms starting on 1 July 1926 and finishing on 30 June 1932; the other half were elected at the 17 November 1928 election and had terms starting on 1 July 1929 and finishing on 30 June 1935. 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]
In 1931 five Labor members in the House of Representatives split from the Scullin government in opposition to its economic policies on the Great Depression and joined the Nationalist Party and three conservative independents in the House to form the United Australia Party (UAP). Subsequently, some New South Wales members and senators were expelled from the Labor Party for their support of New South Wales PremierJack Lang's policy of repudiating foreign debt and formed the Australian Labor Party (New South Wales)—known as Lang Labor—and later voted with the UAP to defeat the Scullin government, leading to the 1931 election.
^ abNationalist Senator Harold Edward Elliott died on 23 March 1931; UAP member Tom Brennan was appointed on 12 May to replace him for the remainder of his term finishing on 30 June 1932.
^ abcdAppointed to a casual vacancy and only held office until the earlier of the next election for the House of Representatives or the Senate.[2]
^ abcLabor Senator John Chapman died on 14 March 1931; Labor member Harry Kneebone was appointed on 1 April to replace him until the 19 December 1931 election when he was defeated by UAP candidate Jack Duncan-Hughes for the remainder of his term finishing on 30 June 1932.
^ abUAP Senator Walter Duncan resigned on 1 December 1931; Lang Labor member Patrick Mooney was appointed on 23 December to replace him for the remainder of his term finishing on 30 June 1932.
^ abUAP Senator James Ogden died on 5 February 1932; UAP member and former Senator Charles Grant was appointed on 3 March to replace him with his term expiring at the September 1934 election, when he was re-elected for the balance of the term expiring on 30 June 1935 and a six year term expiring on 30 June 1941.