Thomas Price served as the South Australian United Labor Party's first Premier of South Australia. He formed a minority government at the 1905 election and was re-elected with increased representation at the 1906 election, serving in the premiership until his death in 1909. It was the world's first stable Labor government. Shortly afterwards, John Verran led Labor to form the state's first of many majority governments at the 1910 election.

The South Australian Labor Party, officially known as the Australian Labor Party (South Australian Branch) and commonly referred to simply as South Australian Labor, is the South Australian Branch of the Australian Labor Party, originally formed in 1891 as the United Labor Party of South Australia. It is one of two major parties in the bicameral Parliament of South Australia, the other being the Liberal Party of Australia (SA Division).