One of my favourite sources of information is the Victoria Government Gazette. The Gazette and its predecessors are digitised for the years 1836 to 1997 and are available on-line here http://gazette.slv.vic.gov.au/ The Gazette covers all official notifications of Government and Legal activities and was the main way that the Government communicated with the public. If a person had applied for a patent, been appointed or dismissed from a Government position, been granted a miners right, become insolvent, been granted land, applied to register a trade mark, became a Cemetery Trustee, been appointed a registrar of births and deaths amongst other activities then you could find them listed in the Gazette. You will also find information about places such as when the town, cemetery, school or church site was officially established or 'gazetted', local government information, information about Council tenders, lists of animals impounded at the local pound - the list goes on.
Here are occasions that Carlo appeared in the Victoria Government Gazette -
Granted certificate of competency as as Land Surveyor
Victoria Government Gazette February 6, 1880, p. 302.
Licensed to practise as a Surveyor
Victoria Government Gazette July 3, 1885, p. 1881.
Appointed Engineer for Roads, Bridges, Harbors, Jetties and Coast works.
Victoria Government Gazette November 25, 1892, p. 4340.
Appointed to a Land Classification Board for Village Settlement purposes
Victoria Government Gazette September 10, 1902, p. 3721
Appointed to a Land Classification Board
Victoria Government Gazette May 18, 1910, p. 2429.
Appointed a Magistrate
Victoria Government Gazette August 12, 1914, p. 3558.
