A by-election was held for the New South Wales Legislative Assembly electorate of Cumberland North Riding on 11 December 1857 because of the resignation of John Darvall. Dates Result The by-election was caused by the resignation of John Darvall in November 1857. See also Electoral results for the district of Cumberland (North Riding) List of New South Wales state by-elections References 1857 elections in Australia New South Wales state by-elections 1850s in New South Wales