"At the time of the Wertheimer commission Sargent was the most celebrated, sought-after and expensive portrait painter in the world". New Orleans Museum of Art
web.archive.org
Currier Museum of Art, "“Grace Elvina, Marchioness Curzon of Kedleston”" retrieved 4/5/2007 Currier Museumเก็บถาวร 2007-09-28 ที่ เวย์แบ็กแมชชีน