Sydney Morning Herald, 23rd November 1892, p. 4 records construction of a dam across Farmers or Cooerwull Creek at a place amongst the hills north of Zig Zag Valley. The aboriginal name, Cooerwull was the property name of Thomas Brown. Ref: The Sydney Herald, 18th June 1838, p. 3. The word Cooerwull according to the Australian Town and Country Journal, 23rd March 1878, p. 23, “is an aboriginal name signifying seed or plant.” However most references record it as, “little flowering plant.” The Queenslander, 26th November 1898, p. 1030. “for a small flowering plant” Ref: Lithgow Mercury, 5th April 1917, p. 6. Most likely, it refers to the Bluebell, Wahlenbergia stricta .