"CHIEF INSPECTOR DOUGLAS". The Brisbane Courier. Vol. LXII, no. 14, 805. Queensland, Australia. 24 June 1905. p. 13. Retrieved 18 September 2018 – via National Library of Australia.
"INTERCOLONIAL". Northern Argus. No. 1426. Queensland, Australia. 11 January 1873. p. 2. Retrieved 18 September 2018 – via National Library of Australia.
"MELBOURNE". Northern Argus. No. 1545. Queensland, Australia. 16 October 1873. p. 2. Retrieved 30 October 2020 – via National Library of Australia.
"NATIVE TROOPERS". The Telegraph. No. 332. Queensland, Australia. 22 October 1873. p. 2. Retrieved 19 September 2018 – via National Library of Australia.
"The Sketcher". The Queenslander. Vol. XIV, no. 147. Queensland, Australia. 8 June 1878. p. 301. Retrieved 21 September 2018 – via National Library of Australia.
"The Palmer". The Brisbane Courier. Vol. XXVIII, no. 5, 144. Queensland, Australia. 31 March 1874. p. 3. Retrieved 19 September 2018 – via National Library of Australia.
"Latest from the Palmer". The Brisbane Courier. Vol. XXIX, no. 5, 330. Queensland, Australia. 3 November 1874. p. 3. Retrieved 19 September 2018 – via National Library of Australia.
"MURDERS BY THE BLACKS". The Telegraph. No. 654. Queensland, Australia. 2 November 1874. p. 3. Retrieved 19 September 2018 – via National Library of Australia.
"The Miner". The Queenslander. Vol. XI, no. 57. Queensland, Australia. 16 September 1876. p. 27. Retrieved 21 September 2018 – via National Library of Australia.
"THE NEW PORT OF TRINITY BAY". The Week. Vol. II, no. 40. Queensland, Australia. 30 September 1876. p. 13. Retrieved 21 September 2018 – via National Library of Australia.
"A Model Township". Queensland Figaro. Queensland, Australia. 10 March 1883. p. 12. Retrieved 23 September 2018 – via National Library of Australia.
"" Black " Douglas". Queensland Figaro. Queensland, Australia. 26 May 1883. p. 2. Retrieved 23 September 2018 – via National Library of Australia.
"The Brisbane Courier". The Brisbane Courier. Vol. XXXVIII, no. 8, 045. Queensland, Australia. 23 October 1883. p. 4. Retrieved 23 September 2018 – via National Library of Australia.
"RIOTING AT NORMANTON". The Capricornian. Vol. 14, no. 25. Queensland, Australia. 23 June 1888. p. 8. Retrieved 25 September 2018 – via National Library of Australia.
"Chief Inspector Douglas". The Telegraph. No. 7, 971. Queensland, Australia. 7 June 1898. p. 2. Retrieved 27 September 2018 – via National Library of Australia.
"Police Changes". The Telegraph. No. 8, 552. Queensland, Australia. 18 April 1900. p. 2. Retrieved 27 September 2018 – via National Library of Australia.
uq.edu.au
espace.library.uq.edu.au
Collinson, J.W. "Innisfail"(PDF). The University of Queensland's institutional digital repository. Retrieved 13 December 2012.