"Herr Wagga Is Curious". The Sun (Sydney). No. 8507. New South Wales, Australia. 10 April 1937. p. 2. Retrieved 31 August 2024 – via National Library of Australia.
"The Southern Districts". The Freeman's Journal. Vol. IV, no. 178. New South Wales, Australia. 19 November 1853. p. 5. Retrieved 31 August 2024 – via National Library of Australia. His father, also named Robert Holt Best, died in 1833.