Cornelia Augusta Hewett Crosse, Dictionary of National Biography… (1892)
“ Knox was a man of wide culture, a good linguist, and a brilliant talker. He was a frequent guest of Dr. Paris, at whose house in London he met Faraday, Sir B. Brodie, Babbage, and other men of science. Among his intimate friends were Rajah Brooke, Admiral Sherard Osborn, Kinglake, Sir Spencer St. John, Kingsley, Thomas Mozley, Wingrove Cooke, and Miss Marianne North. He died in London 5 Oct. 1891. In 1857 he married Susan, daughter of James Armstrong, esq., of the Bengal civil service. Knox published ‘The New Playground, or Wanderings in Algeria,’ in 1881. ”
