William Mortimer Marshall (22 June 1885 – 19 August 1952) was an Australian politician who was a Labor Party member of the Legislative Assembly of Western Australia from 1921 until his death, representing the seat of Murchison.
Marshall was born in North Creswick, Victoria, a small town near Ballarat.
His work as a miner took him to Malaya and Rhodesia, and eventually to Western Australia, where he was employed on the mines at Lawlers and Youanmi.
[1] While on a health trip on the MV Kabbarli in August 1952, Marshall was taken ill and put ashore at Darwin, where he would die in hospital.
[3] His cousin, Bob Marshall, was a billiards world champion and briefly also a member of parliament.