William Archibald Borthwick (20 November 1924 – 31 July 2001) was an Australian politician. Borthwick was a Liberal Party member of the Victorian Legislative Assembly for the electorates of Scoresby (1960–1967) and Monbulk (1967–1982).
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Early life and military service
Borthwick was born in Murrayville in north-western Victoria, and attended state schools in Cowangie and Walpeup before gaining a scholarship to study at Ballarat Grammar School between 1936 and 1939. From 1940 to 1957, he was a bank officer for the State Bank of Victoria, then worked as an insurance representative.
In December 1942, Borthwick enlisted in the Royal Australian Air Force. He served as a fighter pilot in England, Italy and Yugoslavia, and received a special award from the Yugoslavian government for his efforts in protecting Yugoslavia during World War II.
Political career
Borthwick was elected to the Victorian Legislative Assembly in a September 1960 by-election for the seat of Scoresby triggered by the death of the sitting MP, Sir George Knox. At the 1967 state election, Borthwick switched to the new seat of Monbulk.



