Figures in a landscape was painted by Whistler and Loomis Lyman Langdon (1830-1910) for a fellow West Point Cadet, James Wright (d. 1857).
It is catalogued in MacDonald 1995 (cat. rais.) [more] (cat. no. 175).
Figures in a landscape, whereabouts unknown
It was described by Langdon as 'a large picture', in which Langdon painted the landscape and Whistler, the figures. 1
It is unlikely that this was an oil painting although it was catalogued as such in 1980 (see Figures in a Landscape y002). All Whistler's surviving work from this period is in pen, pencil or watercolour.
Thomas J. Wright, the son of an army surgeon, Joseph J. B. Wright (fl. 1833), was a fellow cadet at West Point from 1850-1854. On graduating he served in the army at Jefferson Barracks, and was on frontier duty from 1855 until his death in 1857.
1: Pennell 1908 [more], vol. 2, p. 307.