Identity:
Warren was apparently a social acquaintance of JW, in the early 1890s.
Life:
Warren could be the artist Edmund Warren who was a member of The Arts Club from 1874 to 1889; or Thomas Herbert Warren (1853-1930), who was President of Magdalen College, Oxford from 1885.
Bibliography:
Records of the Arts Club, London; National Portrait Gallery on-line catalogue at www.npg.org.uk (accessed 2005).