Hamilton Collins Sempill was born in Scotland in 1794, son of Hamilton Collins of Bonaw, and heir by will to the estates of his grand uncle Robert Sempill of Castlebarns, Edinburgh, provided he assumed the name of Sempill.
Arrival in the Colony
He arrived on the Warrior in 1830. Other passengers on the Warrior included John and Agnes Dow who were brother and sister of Mrs. Susannah Sempill.
He became Manager of Thomas Potter Macqueen's estate Segenhoe which had been managed up to that time by agent Peter McIntyre. He resided on the Segenhoe estate until Thomas Potter Macqueen arrived in the colony in August 1834 and took up his residence there. The Sempills were then required to find other accommodation, first living in a smaller unsatisfactory building and then later building a permanent home at his 2560 acre grant at Belltrees.
Return to Scotland
Hamilton C. Sempill came into financial difficulties in the 1840's depression and returned to Scotland in 1842, partly with a view to procuring the emigration of shepherds from the Highlands of that country. The Sydney Gazette reported on 16 April 1842 the Departure of the vessel Eweretta. Passengers included Mr. and Mrs. H.C. Sempill, Miss Sempill, Miss Agnes Sempill, Master F. and J. Sempill.
On learning of the continued decline in the pastoral industry of the colony, he decided to dispose ot his interests in New South Wales. His property, as advertised for sale in the 'Sydney Morning Herald,' in March, 1844, consisted of his station in New England, called Walca (Walcha) and Dungowan Creek, with the stock thereon, also the stock running at Ellerston, Beltrees, Aberfoyle, Long-flat, and Hornsdale.
William C. Wentworth
Belltrees was acquired by William Charles Wentworth however Wentworth did not reside at Belltrees and the estate was leased by James White Junior in 1848.
In 1853 Belltrees was purchased by the White family.
Belltrees Wool en route to Scone Railway Station c. 1901