Dieri is an Aboriginal language once spoken to the east of Lake Eyre in Cooper Creek country  in the Sturt Stony Desert in north-west South Australia. In 1874 a 51-page text, “The Dieyerie tribe of Australian Aborigines”, by local resident Samuel Gason, was published.  Information from < https://www.southaustralianhistory.com.au/gason.htm > reveals that Gason, in 1864 in his early twenties, accepted a position in the South Australian police force and was posted to Lake Hope,