After this a Charles WILSON, fisherman or boatman, has children in Hobart with Sarah WILSON formerly BOND, starting with Sarah Ann WILSON b 29 Aug 1847. They go to New South Wales, possibly (from Blaxland Oz Ships) on the Africa as Mr. and Mrs. Wilson and family May 1853, and have more children.Convictism to NSW effectively ceased in 1840. So, the numbers of those who were still serving under a bond continued to diminish significantly. By 1846, the population of NSW excluding the Port Phillip District was roughly 189,600 and by 1851 it had only slightly risen ... to 189,950
BUT by 1856 the population of NSW was 269,700 and by 1861 it was 353,000 - GOLD fever had echoed around the world, people rushed to the colonies of NSW and Vic.
WILSON as a surname is not just a popular surname among convicts to NSW or VDL. It was also a popular surname among those who came free, some as part of garrison forces, others as emigrants seeking a new start. Even in this current era, Wilson continues to be in the top 5 surnames in Australia (Smith, then Jones, then Williams, then Brown and then Wilson).
Charles as a first name was and continues to be another of those popular names, and can be found as Chas in many 19th century newspaper cuttings.
From Trove in 1854 to support the Wilson family our OP mentions moving from Tas to NSW via the vessel
Africa in 1853.
Charles and one other noted by the Chairman of a Committee as a fisherman skilled to fish salmon, mullet, etc of the well-boat referred to as Boat 7 in the report for a proposed Sydney based fishing fleet.
https://trove.nla.gov.au/newspaper/article/12959813 SMH 14 Feb 1854
Charles of the well-boat Trumpeter off Bradley’s Head (Sydney harbour) Empire 12 June 1854
https://trove.nla.gov.au/newspaper/article/60196268But how to confirm or eliminate either the Charles Wilson above or any of the other sightings of him or others of that name ... for example :
There was a Chas H WILSON at Yanko Creek offering £5 reward for recovery of stolen horse from Yarrahee, Yanko Creek.
https://trove.nla.gov.au/newspaper/article/118308575 Goulburn Herald & Argyle Adv. 12 Sept 1857.
There is a chap with the honorific ‘Esq.’ as a Steward at the Annual Races
https://trove.nla.gov.au/newspaper/article/59868419 Bells Life 27 March 1858
There is a chap up in the Inverell area who along with many others, suffered when the Mail was stolen at the Chain of Ponds in Oct 1861
https://trove.nla.gov.au/newspaper/article/192531338 Armidale Express 9 Nov 1861
Or from City of Sydney's Archives
https://www.cityofsydney.nsw.gov.au/learn/history/archives for Sands Directories 1858 Charles A WILSON, wine and spirit merchant of 145 Pitt Street Sydney
or from City of Sydney's Archives for Assessment books
the Charles Wilson a tenant in 1858 off 1 Athlone Place, Sydney
or the Charles Wilson a tenant 56 Brisbane Street, Sydney in 1861
Re NSW births to Charles and Sarah WILSON
if the index registration number has 'V' it is not a civil registration, but it is an Early Church Record, so it is a baptism. Not all babies were baptised, not all baptisms were for babies, and not all early church records were shared with the Registrar of the NSW Supreme Court. It is those NSW Supreme Court records that make up the bulk of those 'V' records.
those Early Church Records can also have several entries for the one event... so for example if a baptism was performed in a parish some distance away from Sydney Town, the clergyman conducting that ceremony would record it in his own register, and was meant to transmit a summary record of that to his superiors who were then meant to forward the information to through to their denomination's head office. It is not possible to determine how many of the church ceremonies of these baptisms, burials, marriages were a) recorded b) transmitted and c) were legible for the volunteers who prepared the indexes by inspecting and transcribing the longhand handwriting for the 'V' series in the 1930s, after decades of people thumbing through the originals, folding corners, significant ink bleeds, and general damage through usage of the records that were not actually bound up into volumes until around 1912 ...
WILSON of course can be mis-read as MILSON and other variations.
But, looking at the current iteration of the NSW BDM index, available online for baptisms 1853-1856 for parents as Charles and Sarah WILSON
and considering Volume numbers :
https://www.records.nsw.gov.au/archives/collections-and-research/guides-and-indexes/births-deaths-and-marriages-registers-1787-18561853 Charles F and Sarah were parents for Charles S, Volume 39A (Church of England) line 571
1854 Charles and Sarah were parents to Rosanna, Volume 71 (Roman Catholic) line 1738
1855 Charles and Sarah A were parents of Frances Volume 42B, (Church of England) line 3127
1856 Charles and Sarah were parents to Josephine S Volume 142A line 926.
Quite possibly four different couples just in those four years, in NSW. And we need to consider that NSW at that time included all of Queensland too.
JM