Sweers Island History Annotations
  21. Fitton p. 609
 
22. Stokes p. 268
 
23. Stokes p. 269
 
24. Flinder's 'Investigators Road'
 
25. Stokes pp. 270-271
 
26. Stokes p. 271
 
27. Knight (1898) p. 7
 
28. According to Queensland Museum; on the other hand. Reed. A.W. (1973) 'Place Names of Australia' at p. 204 suggests under the entry for Sweers Island that 'The 'Investigator Tree' on this island was one of the most famous trees in Australia. Dutch and Chinese navigators had left inscriptions on it at various times.
 
29. Palmer. E. (1903) 'Early days in North Queensland" Angus Br Robertson. Sydney. p. 26
 
30. Austin (1974) p. 50