"Sargent was particularly taken with Ena, an ebullient and mercurial character: 'She was a dashing figure, hopelessly vague about money, engagements, and any domestic routine when she set up house herself at Montagu Square... She had the same quick devotion to paintings, painters and music as her parents." Written by
Richard Orman, quoted from page 157
from the book John Singer Sargent edited by Elaine Kilmurray and Richard
Ormond, published by Princeton University
Press, 1998.
Also see "Portrait of Asher Wertheimer" here
Further
info on this is in the Thomas Craven
essay
here.
This
picture is part of the collection
of the Tate Gallery
Tate
Gallery Website
here