Identity:
Liardet may have been the son of Francis Liardet (1798-1863), naval commander.
Life:
Liardet was appointed Sub-Lieutenant on HMS Malacca on 20 November 1865, and was appointed to HMS Forte in 1868. He met JW on the latter's trip to Valparaiso.
Bibliography:
Times, London, Wednesday 22 November 1865, p12 and Saturday 17 October 1868, p. 9.