Ties in nicely to this chap:
The Ballarat Star, 19 Jul 1894
The death is announced of the oldest settler in the Amherst district—
Mr Albion Cowley...76 years of age, arrived at what was subsequently known as Daisy Hill before gold was discovered, in 1849, and built the first hotel...
http://trove.nla.gov.au/newspaper/article/209216141Albion was the son of
Robert COWLEY and
Sarah MORGAN (death reg 10778). His wife was Harriet HEAVEN(S). They married in South Australia on 10 Jun 1838 aged 18 and 20, having both arrived in SA in 1837 aboard 'Navarino'. Prior to coming to Victoria they were in Tasmania (then Van Diemens Land). They sailed from Launceston to Adelaide on 1 May 1846 aboard 'Henry' with their 3 children.
Daughter Caroline Ann was born in Adelaide on 5 May 1840. Harriet Eliza was born c1842 (she died in Victoria in 1854 aged 12). Son Robert Joseph was born 21 May 1845 in Port Sorrell district of Tasmania, father Albion COWLEY, farmer of Port Fenton, mother Harriet HEAVEN. They had another son named Albion George. Daughter Harriet Emily born in Amherst in 1855 (reg 11370); she married Robt Allan HENDERSON in 1879 (reg 854).
Harriet snr died in 1872 aged 53, born Gloucestershire, parents shown as Daniel HEARNE and Mary EVANS (reg 14).
Albion's brother
Joseph Fisher COWLEY was also in SA (where he married Mary DIVERS in 1846) and then later settled in Amherst, Vic. He died in Vic in 1879 aged 55 (reg 3472).
Another brother,
Daniel COWLEY, married in Victoria in 1856 (to Margt McSWEENEY, reg 2119) and lived in Amherst; he died in Vic in 1912 (reg 14469).
EDIT - arrival in SA of whole family: in 1840 on Charles Kerr from London
Likely death for eldest son Robert in Feb 1847 aged 24/25.
Daughter Caroline died Vic 1912 - see
http://trove.nla.gov.au/newspaper/article/91576416)
Thomas stayed in SA and died aged 90. Photos of him in these articles as well as info about his father Robert:
http://trove.nla.gov.au/newspaper/article/59611198http://trove.nla.gov.au/newspaper/article/164171057