James O'Brien, who was first elected to represent Westland for the Labour Party in 1922 and had been Westland's MP continuously since 1928, died on 28 September 1947. This triggered the Westland by-election, which occurred on 3 December 1947. James Kent was the candidate for the Labour Party, and J. F. Lockington was the candidate for the National Party. Kent obtained 57.9% of the votes and was successful.
Norton, Clifford (1988). New Zealand parliamentary election results, 1946–1987. Wellington: Victoria University of Wellington Department of Political Science. pp. 391, 408, 410. ISBN0-475-11200-8.|access-date= requires |url= (help)