3 On 10 March 1911,
Joshua Thomas Bell, the Liberal member for
Dalby, died. At the resulting by-election on 2 April 1911, Liberal candidate
William Vowles was elected.
4 In July 1911, the member for Fitzroy,
James Crawford was expelled from the Labor Party for alleged disloyalty. He served out his term as an independent.
5 On 24 August 1911,
Denis Keogh, the Liberal member for
Rosewood, died. Liberal candidate
Harry Stevens won the resulting by-election on 16 September 1911.
6 On 30 August 1911,
Richard John Cottell, the Liberal member for
Toowong, died. The Secretary for Public Lands and member for
Brisbane North,
Edward Macartney, resigned on 5 September. By-elections for both seats were held on 16 September 1911, with Macartney switching to Toowong, and Liberal candidate
Thomas Welsby winning Brisbane North.