Hamilton came from an old
Herefordshire family and as a youth was educated at
Harrow School before serving as
midshipman in the
Royal Navy. Farming was his major interest when he emigrated to Australia, firstly to Sydney, before overlanding sheep to
Port Phillip, Victoria in March, 1837. He was the first European to settle on the future townsite of
Gisborne, Victoria on about 24 March 1837. He then participated in overlanding a herd of cattle for Lt
Alfred Mundy and Captain George Brunswick Smyth from Pyalong, Victoria to Adelaide in October 1839, along with close friend
E.B. Scott. For the next few years he combined mixed farming along with his artistic talents, both visual arts and authorship, all of which had considerable merit, but none of which were a resounding success. In 1848 he accepted a position as clerk with the Colonial Treasury and, when the Gold Escorts from the
Victorian Goldfields were established, he transferred in May 1852 to become Bullion Clerk in the busy Gold Escort Office. ==Early Police career==