It was triggered by the resignation of the former Premier of New South Wales and second Leader of the New South Wales Liberal Party, Alexander Mair, in order to run for a seat in the Australian Senate.
The seat was subsequently won by John Hurley of the Labor Party. The Liberals witnessed a drop in their primary vote due to the Country Party fielding a candidate and splitting the conservative vote.
The seat of Albury, a traditionally safe Liberal seat, was held since 1932 by Alexander Mair, who after serving as a cabinet minister rose to become Premier of the state from 1939 to 1941. Following the electoral defeat in 1941, Mair played a central role in the negotiations to merge the conservative parties to form Robert Menzies' newly created Liberal Party of Australia, becoming a delegate for the Canberra Conference in October 1944 and hosting the second party conference in his seat in Albury at Mate's Department Store. Despite initial efforts to merge the Democratic Party with the Liberal Democratic Party becoming deadlocked over questions of party organisation and by acrimony between Weaver and the LDP leader, Ernest K White, they were ultimately successful and the Liberal party was born in early 1945. Serving on the Liberals' New South Wales executive from 1945 to 1946, when first party leader Weaver died suddenly on 12 November 1945, Mair was chosen to succeed him.
He served as the second Leader of the New South Wales Liberal Party only briefly until he resigned as leader on 21 March 1946, being succeeded by his former Minister for Justice, Vernon Treatt. On 14 August 1946, after serving fourteen years in the New South Wales Parliament, Mair resigned his seat to run for a seat in the Australian Senate. At the 1946 federal election held on 28 September, Mair was unsuccessful with the Labor Party winning all three NSW seats.
|Total formal votes||14,175||85.38|
|Labor gain from Liberal||Swing|
The Liberal candidate, Ernest Atkinson, was excluded on the first count. The Labor candidate John Hurley picked up 15% of the Liberal preferences which was enough to defeat the Country Party candidate, Alfred Townsend.
- Green, Antony. "1946 results Albury by-election". New South Wales Election Results 1856-2007. Parliament of New South Wales. Retrieved 22 September 2019.
- Clune, David & Turner, Ken (2006). The Premiers of New South Wales 1856–2005. Vol. 2, 1901–2005. Sydney: Federation Press. p. 237. ISBN 9781862875517.
- "1946 Senate - New South Wales". Psephos: Adam Carr's Election Archive. Retrieved 9 January 2011.