|20 May 1937||Sir Daniel Levy died.|
|2 June 1937||Writ of election issued by the Speaker of the Legislative Assembly.|
|14 June 1937||Nominations|
|26 June 1937||Polling day|
|9 July 1937||Return of writ|
|United Australia||George Grant||6,686||46.3||-25.6|
|Independent UAP||Harold Mason||6,173||42.7|
|Independent UAP||George McDonald||1,595||11.0|
|Total formal votes||14,644||96.1||-0.7|
|Independent UAP||Harold Mason||7,331||50.7|
|United Australia||George Grant||7,123||49.3||-22.6|
|Independent UAP gain from United Australia||Swing||N/A|
- "Sir Daniel Levy (1872–1937)". Former Members of the Parliament of New South Wales. Retrieved 21 May 2019.
- "Writ of election: Woollahra". Government Gazette of the State of New South Wales. No. 78. 2 June 1937. p. 2125. Retrieved 28 March 2021 – via Trove.
- Green, Antony. "1937 Woollahra by-election". New South Wales Election Results 1856-2007. Parliament of New South Wales. Retrieved 28 March 2021.
- "Mr Harold Harvey Mason (1890-1949)". Former Members of the Parliament of New South Wales. Retrieved 13 May 2019.