15 August 1905 to 7 May 1906
Sir Cornwaithe Rason was born in England, the son of a Royal Naval surgeon. He came to Australia in 1881 in search of his fortune but returned home 18 months later, none the richer.
After marrying in 1883, he returned to WA with his wife and her brother and set up as a general merchant and storekeeper.
The company tried to cash in on the Kimberley gold rush and mining activity in the eastern Goldfields.
Rason's political career began when he was elected to the Legislative Council for the Swan District in 1889. He was keen on the concept of responsible government. He held the seats of South Murchison and Guildford during the next 11 years.
In 1901, he became Minister for Works and was responsible for the Coolgardie Water Scheme, in 1904 Colonial Treasurer and in 1905 he was appointed Premier, Colonial Treasurer and Minister for Justice.
The following year he resigned from Parliament to take up the post of Agent General in London, a position he held for 6 years. He stayed in Britain and joined Bovril Australian Estates Ltd as chairman, a position he held until his death in 1927.