Government (30) - (1 seat minority)[i] Liberal (24) Country Party (6) [ii]
Crossbench (2) ALP (Anti-Communist)/DLP (2) [iv]
Changes in composition This is a list of members of the Australian Senate from 1956 to 1959.
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.