A by-election was held for the New South Wales Legislative Assembly electorate of Darling Harbour on 13 April 1910. The by-election was triggered by the resignation of John Norton to unsuccessfully contest 1910 federal Senate election for NSW.[1]
The by-election and those for Queanbeyan and Upper Hunter were held on the same day as the 1910 Federal election.
| Date | Event | |
|---|---|---|
| 18 February 1910 | John Norton resigned. | |
| 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 |