William Ah Ket was born on 20 June 1876 at Wangaratta Victoria. He was the only son amongst five children for Ah Ket, storekeeper and grower and buyer of tobacco, and his wife Hing Ung.
William’s father had arrived inVictoriain 1855 and spent his early days in Australia on the goldfields and also established one of the earliest tobacco farms along theKingRiver. He was a respected member of the Wangaratta community.
William was educated at Wangaratta High School and maintained his Chinese heritage with a Chinese home tutor. Given that he was one of the few Australian-born Chinese citizens to be proficient in both Chinese and English he was often used as a court interpreter during his early teens.
It was his father's wish that he should qualify for the law in his countrymen's interests. In 1893 Ah Ket enrolled in law at the University of Melbourne and proceeded to his articled clerk's course in 1898. In 1902 he won the Supreme Court Judges' Prize and completed his articles with Maddock and Jamieson. He was admitted to practice in May 1903. During the 1900’s Ah Ket was an active opponent to both State and Federal restrictive and discriminatory legislation. In 1901 he helped to create a committee to agitate against the proposed immigration restriction bill. He was a member of the Chinese Empire Reform Association of 1904 and of the Anti-Opium League of Victoria, organizations which supported modernisation and social reform among Chinese at home and abroad. He was a delegate to the first interstate Chinese convention held atMelbournein 1905.
As adviser and publicist Ah Ket was prominent in opposition to the Bent government's attempts between 1904 and 1907 to drive the Chinese out of occupations where they competed with Europeans, by requiring licensing of Chinese workers under the Factories and Shops Acts. He defended his people in A Paper on the Chinese and the Factories Acts (Melbourne, 1906), and was co-founder and president of the Sino-Australian Association, which was the first Australian-Chinese club. In 1912-13 Ah Ket visitedChinaas the delegate of the Victorian Chinese Chamber of Commerce to participate in the election of overseas Chinese to the new parliament of the Republic.
He was acting consul-general forChinain 1913-14 and in 1917. On 16 November 1912 Ah Ket married Gertrude Victoria Bullock at the Kew Methodist Church. They had two sons and two daughters. Ah Ket died of arteriosclerosis and renal failure at Malvern on 6 August 1936, and was cremated after an Anglican and Masonic service.