
'Thoughts at Sunrise' by Nita Moncrieff dates from 1880/1881.

'Thoughts at Sunrise' by Nita Moncrieff, photograph, Library of Congress
This is catalogued in MacDonald 1995 (cat. rais.) [more] (cat. no. 834).

'Thoughts at Sunrise' by Nita Moncrieff, photograph, Library of Congress

'Thoughts at Sunrise' by Nita Moncrieff, photograph, Library of Congress

'Thoughts at Sunrise' by Nita Moncrieff, photograph, Library of Congress
A tree branch in the foreground, the silhouette of a city on the horizon.
According to the Pennells:
'Mrs. Lynedoch Moncrieff was composing the music for some verses of Owen Meredith's. Whistler said he would like to illustrate them. She told him they were about the lark.' 1
Edward Robert Bulwer Lytton (Owen Meredith) wrote the poem of idyllic love, 'Thoughts at Sunrise', published in The Poems of Owen Meredith (Honble. Robert Lytton) (1869), pp. 30-33. See 'Thoughts at Sunrise' by Nita Moncrieff m0833.

'Thoughts at Sunrise' by Nita Moncrieff, photograph, Library of Congress
The distant view, though imaginary, looks like Venice.

'Thoughts at Sunrise' by Nita Moncrieff, photograph, Library of Congress
It is known only from the photograph in the E. R. and J. Pennell Collection, Library of Congress.

'Thoughts at Sunrise' by Nita Moncrieff, photograph, Library of Congress
Another version is 'Thoughts at Sunrise' by Nita Moncrieff m0833.
Antoinette Gaetano Mackie, daughter of John Clarens Mackie, was born in New Orleans. On 10 December 1878 she married a retired naval officer, Lynedoch Needham Moncrieff (1841-1883). She was later recorded as Antoinette Marie Lynedoch Moncrieff, and died in Kensington on 25 July 1937.
The Moncrieffs lived near Whistler, at Cadogan Place in Chelsea. They had one daughter, Mary Mercedes Julie Moncrieff (1880-1974) who married Henry Crofton Schneider (1876-1939). See further details in 'Thoughts at Sunrise' by Nita Moncrieff m0833.
1: Pennell 1921C [more], p. 227.