The following lists events that happened during 1920 in New Zealand. Incumbents Regal and viceregal Head of State – George V Governor-General – Arthur Foljambe, 2nd Earl of Liverpool until 7 July, then John Jellicoe, Viscount Jellicoe from 27 September Government The 20th New Zealand Parliament commences, with the Reform Party in Government Speaker of the House – Frederic Lang (Reform Party) Prime Minister – William Massey Minister of Finance – James Allen until 28 April, then William Massey from 12 May Minister of External Affairs – James Allen until 28 April, then Ernest Lee from 17 May Parliamentary opposition Leader of the Opposition – William MacDonald (Liberal Party) until his death on 31 August, then Thomas Wilford Judiciary Chief Justice – Sir Robert Stout Main centre leaders Mayor of Auckland – James Gunson Mayor of Wellington – John Luke Mayor of Christchurch – Henry Thacker Mayor of Dunedin – William Begg Events 1 May – The Colonist, established in 1857, publishes its final issue, and is incorporated into The Nelson Evening Mail. 25 August – Captain Euan Dickson makes the first aerial crossing of Cook Strait, from Christchurch to Upper Hutt, in an Avro 504K. Arts and literature See 1920 in art, 1920 in literature, :Category:1920 books Music See: 1920 in music Film See: :Category:1920 film awards, 1920 in film, List of New Zealand feature films, Cinema of New Zealand, :Category:1920 films Sport Chess The 29th National Chess Championship, held in Wellington, is won by W. E. Mason of Wellington, his fifth title. Cricket Plunket Shield Football Provincial league champions: Auckland – YMCA Canterbury – Nomads Hawke's Bay – Waipukurau Otago – Kaitangata FC Southland – No competition Wanganui – Eastbrooke Wellington – Wellington Thistle Golf The 10th New Zealand Open championship is won by J. H. Kirkwood The 24th National Amateur Championships are held in Hamilton: Men – Sloan Morpeth (Hamilton) Women – N. E. Wright (her second title) Horse racing Harness racing New Zealand Trotting Cup – Reta Peter Auckland Trotting Cup – Man O'War Thoroughbred racing New Zealand Cup – Oratress Auckland Cup – Starland Wellington Cup – Kilmoon / Oratress (dead heat) New Zealand Derby – Duo Lawn bowls The national outdoor lawn bowls championships are held in Christchurch. Men's singles champion – E. Harraway (Dunedin Bowling Club) Men's pair champions – J. Turnbull, W. Spiller (skip) (Sydenham Bowling Club) Men's fours champions – H.