Isaac Cook, Jr., of Maine, was a collector.
Cook purchased Battersea Reach (YMSM 45) in 1893 from Edward Guthrie Kennedy through JW. Kennedy described him to JW in 1895 as 'a very nice fellow'. He told Cook to ask JW for The White Girl (M.471), which he had requested that JW 'put a head on' [#07256].
Young, Andrew McLaren, Margaret F. MacDonald, Robin Spencer and Hamish Miles, The Paintings of James McNeill Whistler, New Haven and London, 1980; MacDonald, Margaret F., James McNeill Whistler. Drawings, Pastels and Watercolours. A Catalogue Raisonné, New Haven and London, 1995.