Simplify the following text for a Grade 9 native English-speaking person.
Original: Sir Walter Hartwell James KCMG KC ( 29 March 1863 -- 3 January 1943 ) was the fifth Premier of Western Australia and an ardent supporter of the federation movement .
Simplified: Sir Walter Hartwell James ( 29 March 1863 â `` 3 January 1943 ) was the 5th Premier of Western Australia from 1 July 1902 to 10 August 1904 .