The engraver of one known Cornish subject (St Mawes, Cornwall), nothing is known at present about Kernot's time in Cornwall - and there may have been none, as he may have engraved the work elsewhere, based on observations by the gifted artist-architect Thomas ALLOM (1804-1872), as evidenced by his engraving of London from an original study Allom in 1881.  

A Mrs James H Kernot is listed as an artist by Christopher Wood, as an exhibitor of two oriental scenes in 1855-56 from an address in London.