
Harmony in Yellow and Brown: Sunday was probably painted in 1884. 1
It was first exhibited in Whistler's one-man show, 'Notes' - 'Harmonies' - 'Nocturnes', Messrs Dowdeswell, London, 1884 (cat. no. 42).

Street in Old Chelsea, Boston Museum of Fine Arts
Contemporary descriptions are not clear enough to identify it with certainty, but it could be Street in Old Chelsea y249.

Harmony in Yellow and Brown: Sunday, Whereabouts unknown

Street in Old Chelsea, Boston Museum of Fine Arts

An Orange Note: Sweet Shop, Freer Gallery of Art

Harmony in Brown and Gold: Old Chelsea Church, Freer Gallery of Art
Only one title has been suggested:
The punctuation was changed to conform with other titles, so that the preferred title is 'Harmony in Yellow and Brown: Sunday'.
The Globe described it as one of several 'studies made in the streets about Chelsea ... rows of old houses.' 4
Chelsea, London, UK.
The Globe described the technique:
'Mr Whistler's fine sense of colour and his power of rapidly recording his impression of a scene, are ... best shown in his studies made in the streets about Chelsea. ... admirable studies, most harmonious in tone, produced with little apparent labour, but conveying an impression of completeness.' 5
Unknown.
Unknown.
Unknown.

An Orange Note: Sweet Shop, Freer Gallery of Art

Harmony in Brown and Gold: Old Chelsea Church, Freer Gallery of Art
The Globe compared Harmony in Yellow and Brown: Sunday y248 with An Orange Note: Sweet Shop y264 and Harmony in Brown and Gold: Old Chelsea Church y305:
'Mr Whistler's fine sense of colour and his power of rapidly recording his impression of a scene, are ... best shown in his studies made in the streets about Chelsea. The rows of old houses, "Sunday," "Old Chelsea Church", and the little "Sweet Shop" ... are admirable studies, most harmonious in tone, produced with little apparent labour, but conveying an impression of completeness.' 6
1: YMSM 1980 [more] (cat. no. 248).
2: 'Notes' - 'Harmonies' - 'Nocturnes', Messrs Dowdeswell, London, 1884 (cat. no. 42).
3: YMSM 1980 [more] (cat. no. 238).
4: Globe, London, 25 May 1884; press cutting in GUL Whistler PC 7, p. 14.
5: Globe, London, 25 May 1884; press cutting in GUL Whistler PC 7, p. 14.
6: 'Mr. Whistler's Exhibition', Globe, London, 20 May 1884, p. 6; press cutting in GUL Whistler PC 7, p. 14.