Simplify the following text for a Grade 7 native English-speaking person.
Original: Philip Collier ( 21 April 1873 â `` 18 October 1948 ) was Premier of Western Australia for nine years , the longest ever term for an Australian Labor Party premier .
Simplified: Philip Collier ( 21 April 1873 â `` 18 October 1948 ) was the 14th Premier of Western Australia from 17 April 1924 to 23 April 1930 and then from 24 April 1933 to 19 August 1936 . He was from the Labor Party .