Under the Additional Members Act 1864, the seats of Clermont, Kennedy, Maryborough, Mitchell, Rockhampton and Warrego were created. By-elections to fill the new seats were held on 1 February 1865 (Maryborough and Rockhampton), on 18 March 1865 (Clermont and Kennedy) and on 25 March 1865 (Mitchell and Warrego). Frederick Forbes was elected in Warrego.[1][2]