"Fiat in Bankruptcy". Adelaide Observer. Vol. I, no. 29. South Australia. 13 January 1844. p. 3. Retrieved 25 January 2018 – via National Library of Australia. Charles was here named "Charles Beck the younger"
"Local Intelligence". Adelaide Observer. Vol. III, no. 150. South Australia. 9 May 1846. p. 5. Retrieved 25 January 2018 – via National Library of Australia.
"Advertising". South Australian Register. Vol. XIX, no. 2828. South Australia. 18 October 1855. p. 3. Retrieved 26 January 2018 – via National Library of Australia.
"Shipping Intelligence". South Australian Register. Vol. XIX, no. 2773. South Australia. 13 August 1855. p. 2. Retrieved 26 January 2018 – via National Library of Australia. This gives he only intimation that Frederick had a family.
"Latest News". Evening Journal (Adelaide). Vol. XVII, no. 4930. South Australia. 16 March 1885. p. 2. Retrieved 25 January 2018 – via National Library of Australia.
"Advertising". South Australian Register. Vol. L, no. 12, 125. South Australia. 23 September 1885. p. 8. Retrieved 25 January 2018 – via National Library of Australia.