A by-election was to be held for the New South Wales Legislative Assembly electorate of Argyle on 17 February 1857 because the seat of John Plunkett was declared vacant due to his appointment as President of the Legislative Council. Dates Results John Plunkett was appointed President of the Legislative Council. See also Electoral results for the district of Argyle List of New South Wales state by-elections References 1857 elections in Australia New South Wales state by-elections 1850s in New South Wales