A by-election was held for the New South Wales Legislative Assembly electorate of Northumberland on 23 March 1910. The by-election was triggered by the resignation of Matthew Charlton (Labor) to successfully contest the 1910 federal election for Hunter. [1]
| Date | Event |
|---|---|
| 28 February 1910 | Resignation of Matthew Charlton. [1] |
| 8 March 1910 | Writ of election issued by the Speaker of the Legislative Assembly. [2] |
| 23 March 1910 | Nominations |
| 13 April 1910 | Polling day and 1910 Federal election |
| 3 May 1910 | Return of writ |
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Labor | William Kearsley | Unopposed | |||
| Labor hold | |||||