Hi there,
The NSW State Archives 'Convict Index' has a chap as
John BENNETT, per Adelaide 1849.
Under that spelling of his surname the index shows John Bennett receives several Ticket of Leave:
In 1849 #1236, for the District of Illawarra - trial at Ely Wisback Quartersessions
In 1849 #1391, for the District of Newcastle - trial Staffordshire Assizes
In 1851 #0038 (28 Jan 1851) Ticket of Leave 49/1391 (ie District of Newcastle, ex Staff Ass) he receives a ToL Passport on the application of Mr Osborne.
So, was there ONE or TWO chaps on the Adelaide named John BENNETT (or variations)...
https://www.records.nsw.gov.au/search_form?id=65 (you can search by vessel only)
JM