Garnham BLAXCELL's name occurs several times in the history of milling in New South Wales. He arrived in Australia as an acting purser on the 'Buffalo' on the 16th of October 1802 and was the Secretary to the Governor of New South Wales from April 1804 to August 1806. BLAXCELL was active in the 1808 Rum Rebellion against Governor BLIGH, and was also one of the three contractors for the Rum Hospital between 1811 and 1816. He established a salt works at Cockle Bay (Darling Harbour), Ca.1810 and was active as a general merchant.
BLAXCELL departed the colony for England on 9 April 1817 after apparently getting himself into considerable financial strife, and died in Batavia on 3 October 1817.
An official biography can be read here.