George Irwin Fox was appointed Assistant-Surgeon on 29 June 1825.
He was employed as Surgeon Superintendent on the convict ship Kinnear in 1842. The Kinnear departed Dublin 10 July 1842 and arrived in Van Diemen's Land 23 October 1842.
He was on the List of Surgeons of the Royal Navy in 1852.
He was entered in the British and foreign homeopathic medical directory and record for 1853 -
George Irwin Fox, 7 Flora Place, Union Street, Plymouth, Hampshire;
M.D., Glasgow 1837;
Formerly Surgeon Royal Navy
George Irwin Fox died at Bath of consumption age 50 in June 1856 (The Gentleman's Magazine)
Letters of Administration of the Personal estate and effects of George Irwin Fox late of Plymouth in the County of Devon M.D. Surgeon on Half pay in Her Majesty's Navy a Bachelor deceased who died 5 May 1856 at Bath in the County of Somerset left unadministered by Jane Lewes Fox widow, the mother and only next of kin of the said deceased were granted at the Principal Registry to Cornelius Fox of West Park Ivybridge in the county of Devon aforesaid a Commander in Her Majesty's Navy the Brother of the said deceased he having been first sworn. (England and Wales, National Probate Calendar (Index of Wills and Administrations), 1861-1941 Ancestry)