John Humphries [or Humphreys] Johnston was a figure, portrait, landscape and marinepainter.
Johnston worked with John La Farge in New York and under J. Lefebvre and Doucet in Paris. He won a silver medal at the Exposition Universelle of 1900 and a second class gold medal at Munich in 1901. In 1901 he was also awarded the Chevalier de la Légion d'Honneur.
Johnston was a member of the International Society of Sculptors, Painters and Gravers (of which JW was President) in London and an Associate of the Société des Beaux-Arts in Paris. He may well therefore have been the 'Humphrey Johnston' that JW was in touch with in 1902, when he wanted to know whether his paintings were 'skied' at the Salon.
Bénézit, E., Dictionnaire des Peintres, Sculpteurs, Dessinateurs et Graveurs, 8 vols, Paris, 1956-61.