Sir William John Polson (6 June 1875 – 8 October 1960) was a New Zealand politician, first as an Independent and then in the National Party. He joined the National Party on its formation in 1936, and "later acted effectively as Holland's deputy". Biography Early life and career Polson was born in Wanganui to Scottish immigrants Donald Gunn Polson and Janet Campbell Gillies, and was educated at Wanganui Collegiate School. After finishing school he worked on his father's farm until ill health caused him to cease work. During his recuperation he taught himself shorthand and later became a journalist. He was Wellington provincial president of New Zealand Farmers' Union from 1920 to 1921 and became dominion president from 1921 to 1936. Polson's position as president meant he became prominent in national politics. He clashed with the Reform government over meat marketing in 1919, monopolistic marketing trusts in the face of a produce price slump in 1921. He initiated the Meat Export Control Act in 1922 to help local farmers’ profits. He had married Florence Ada Mary Lamb Wilson in 1910 with whom he had four children. Florence helped found the Women's Division of the New Zealand Farmers' Union and became its first president from 1925 to 1929. Political career Polson was a member of the Wanganui County Council from 1911 to 1917 and for three years he was the council's chairman. He was also a member of the Wanganui Harbour Board. As council chairman he instigated the construction of the Durie Hill Elevator. Polson represented the electorate of in Parliament from 1928 to 1946. He retired from Parliament in 1946, when the seat of Stratford was eliminated by electoral boundary changes. He made a point of declining the United Party nomination, believing it more befitting that the leader of the Farmers' Union be non-partisan. In 1936, following the election of the First Labour Government, Polson resigned as Farmers' Union president and joined the new National Party. Polson played a key role in replacing Adam Hamilton as National Party leader with Sidney Holland. Thereafter Holland maintained Polson as a close confidant and he became Deputy Leader of the Opposition (an informal post at the time) as a sign to preserve unity between both the rural and urban sectors of the National Party. On 30 June 1942 Polson became minister of primary production for war purposes in Peter Fraser's short-lived War Administration