Jack Butler (4 May 1901 – April 1986) was an Indigenous Australian and perhaps the last speaker of the Jiwarli dialect.
[1] His mother, called Silver in English, was a Tharrkari woman who worked as a cook at the outcamp.
[2] In 1905 or 1906 Butler and his family moved to Glennflorrie Station, where he helped to look after male elders.
In 1926 Butler moved to Mount Stuart Station and in 1927 he married Molly Ashburton, a Thalanyji woman.
According to Austin, although white colonisation of the area began in the 1860s, it was not until the expansion of the Western Australian pearling industry and its forced labour system in the 1920s that traditional Jiwarli life was "irreparably disrupted".