text: John Collings Willcock ( 9 August 1879 â `` 7 June 1956 ) was the 15th Premier of Western Australia .
simplified: John Collings Willcock ( 9 August 1879 â `` 7 June 1956 ) was the 15th Premier of Western Australia from 20 August 1936 to 31 July 1945 .