Of those whose father's names were not readily apparent in the original list:
Mandal Thommes M. Tommeson he was born 7 Mar 1855 to matros (seaman) Lars Thomasen and Anne Mathea Gulovsdatter & confirmed: #15: Source information: Vest-Agder county, Halse, Parish register (official) nr. A 14 (1859-1872), Confirmation records 1869, page 303. Permanent pagelink:http://www.arkivverket.no/URN:kb_read?idx_kildeid=885&idx_id=885&uid=ny&idx_side=-304http://www.arkivverket.no/URN:kb_read?idx_kildeid=885&idx_id=885&uid=ny&idx_side=-304
Bergen Thomas Martin Thomsen not certain. Have looked through the Bergen Nykirke (parish of residence in 1865)confirmations 1867-1871 and found this one as possible but middle name is Thomas not Martin, first name is Hans not Thomas; father's name is skipper Thomas Severin Thomsen,#15
Of the occupations in the 1865 census of the fathers, most are farmers or cotters, only Thomas Engelson has a "wood related" occupation, husman (cotter) og tømreman, which could be interpreted as carpenter (tømrer) or lumberer/lumberjack (tømmerman)and so, depending on the strength of that, you may wish to add Fuse Thomas Thomasen to the list of possibles to explore.
Yes the link for Mandal Thomas Eid Thomassen didn't work, sorry for that.His father's occupation was "handelsborger" which could be interpreted as merchant tradesman.
The next set of records to seek would be confirmations for the possibles (to be certain that they haven't died) and then possible parish migration records (utflyttedes/udflyttedes)or police migrant registrations.Of course since Thomas Thompson in Australia was a practicing sailor & skipper, it should be noted that sea-faring folk may or may not appear on either of the 2 kinds of migration records (utflyttedes or migrant registrations.)
Yes, Sonia, you want as many records with as many details as possible from Australia to compare to the possibles in Norway to eliminate or accept any given candidate.