Entered the Bengal Army as Assistant Surgeon in 1841. He was gazetted Surgeon to the 24th Native Infantry in 1855, Surgeon Major in 1861, and became Deputy Inspector of Hospitals in 1867. He retired in 1873. He died at Clifton on May 23rd, 1886. His services were of great value to the Government in India. "It was said of Henry Walter Bellew that his services on the frontier were worth a couple of regiments to the Government. This very high praise, however, has been bestowed upon more than one medical officer. Before Bellew's time a similar remark was made about Charles Lindsey Cox.... In much later times the same thing has been said with equal truth of Dr T L Pennell [Theodore Leighton Pennell (qv)], the famous frontier medical missionary." (Lieut-Colonel Crawford in *History of the I.M.S*., ii, 134.) Charles Lindsey Cox saw active service in China (1841-1843), (Medal), and in the Second Sikh or Punjab War (1848-1849), (Medal).