
Dorothy Seton dates from 1902. On Monday 20 October 1902, according to Elizabeth Robins Pennell (1855-1936), Whistler had been painting 'Miss Seton', whom she described as:
'a Miss Seton, who was rolling up her reddish hair when I came in. "Most people think she isn’t pretty," Whistler said, "but I find hers a remarkable face. It reminds me of Hogarth's Shrimp Girl in the National Gallery". He had been working, but only a very little. He did not seem able to get back to it again. He showed me a sketch of her head, against a grey-green background, on a tiny panel.' 1

Dorothy Seton, Whereabouts unknown

Dorothy Seton - A Daughter of Eve, The Hunterian
Only one title has been suggested:
Described by the Pennells as 'a Miss Seton ... a sketch of her head, against a grey-green background, on a tiny panel.' 3
Dorothy Seton (fl. 1885-1900).

Dorothy Seton - A Daughter of Eve, The Hunterian
She posed for Dorothy Seton - A Daughter of Eve y552 (and see also Head of a Girl y554).
She may have been the 'Dora. Seton' recorded in the 1901 UK census as an artist and sculptor, aged 22, born in Dublin, and living at 59 Park Road, Battersea.
Unknown.
It was described as a sketch portrait of a young woman, Dorothy Seton: 'a sketch of her head, against a grey-green background, on a tiny panel.' 4
Unknown.
Unknown.
Unknown.
Unknown.
1: Pennell 1921C [more], p. 257; see also Pennell 1908 [more], vol. 2, p. 291.
2: YMSM 1980 [more] (cat. no. 551).
3: Pennell 1921C [more], p. 257.
4: Pennell 1921C [more], p. 257.