John Henry Challis (6 August 1809 – 18 February 1880) was an Anglo-Australian merchant and philanthropist. Challis was born in England, the son of John Henry Challis, sergeant in the 9th Regiment, and his first wife. He was educated at several schools and trained as a clerk. He then migrated to Sydney, New South Wales, arriving on the Pyramis on 9 May 1829 as a steerage passenger. He was employed by Marsden and Flower, merchants. In 1842 the firm was reorganized under the name of Flower, Salting and Company, when Challis was admitted as a junior partner. The business dealt in wool amongst other things and became very prosperous. He acquired several properties, including a large holding at Potts Point, he also has pastoral licenses of over 12,000 sq. miles (31,080 km²) in southern New South Wales and had more than 3,500 cattle and 11,000 sheep. In 1855 he sold his business interests
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