'Ma Nièce' dates from shortly after the birth of Annie Harriet Haden (1848-1937) on 13 December 1848. 1
, The Hunterian
At Christmas, Whistler's mother Anna Matilda Whistler (1804-1881) requested 'a sketch of Sisters baby sleeping, at the top of your next letter dear Uncle Jemie.' 2
1: It is catalogued in MacDonald 1995 (cat. rais.) [more] (cat. no. 21); the record has been revised.
2: [25 and] 26 December , GUW #06380.