Identity:
Ferdinand Bol was a portrait painter and pupil of Rembrandt.
Life:
Whistler would have seen his work in Amsterdam.
Bibliography:
Bénézit, E., Dictionnaire des Peintres, Sculpteurs, Dessinateurs et Graveurs, 8 vols, Paris, 1956-61; Macmillan (Grove) Dictionary of Art, ed. Macey, www.groveart.com (accessed 2004).