Identity:
There are several possible women of this name, listed in the 1901 British census, including 'Betta Corey', aged 59, and American subject living in Clapham; Emma Corey, aged 54, born in Brighton and living in the parish of St George's, Hanover Square; and Myra Corey, aged 48, born in Uckfield, Sussex, and living in the parish of St George's, Hanover Square, London. However, it is not certain that any of these was the Miss Corey known to Whistler.
Bibliography:
UK census 1901.