This is almost certainly Samuel Kennedy, the son of William Henry KENNEDY and Harriet Ann nee THORNE and who was born 8 September 1828, registered at Sorell.

His father was a freed convict who settled at Pittwater and with his wife they had four children Anne (1822), Harriet (1826), Samuel (1828) and John (1832).

Samuel Kennedy was not an orphan.  Harriet Kennedy died in 1835 aged only 30.  Henry Kennedy was a drunkard and local authorities noted the children to be 'in distress' after their mother died.  Samuel would have been put into the orphanage as his father wouldn't have been caring for him.   His father died in 1854.

Samuel married Mary Anne Young on 5 July 1856 in Hobart. They initially lived in the Sorell district but later moved to Hobart. Samuel became a mariner and worked whalers. The year of his marriage, he was one of 34 crewman on the whaler Prince Regent. In 1858 he joined the Marie Laurie and became its Master in 1860 and later, her captain in 1874. In between, Samuel captained the Derwent Hunter in 1866. In the 1870s, Kennedy co-owned the 308 ton barque Asia with J Bayley and Alexander McGregor (the latter had the mansion Lenna built at Battery Point).

Samuel Kennedy died in 1903 in Hobart.