It was triggered by the resignation of sitting Labor member Tom Burns.

It was triggered by the resignation of sitting member Allison Ritchie.

It was triggered by the resignation of sitting Labor member Bob Gibbs.

It was triggered by the resignation of sitting Labor member Keith Wright.

It was triggered by the resignation of George Reid on 18 August 1903.

This was triggered by the resignation of Cllr.

It was triggered by the resignation of sitting member and former minister Craig Knowles.

It was triggered by the resignation of sitting Labor member Robert Poole.

It was triggered by the resignation of sitting member Jim McGinty.

It was triggered by the resignation of sitting member John Kingston.