Surtees, A Catalogue Raisonné, vol. 1, 187 (no. 451).
According to Surtees, this is the last portrait DGR made of his mother. It was completed during his recuperative stay at Hunter's Forestall, Kent (A Catalogue Raisonné, 188).
See the commentary for the early drawing and the later finished oil as well as DGR's letter to his brother of 28 September 1877 where he says he has “commenced a successful drawing of Mamma's head, quite up to my mark, and . . . I have no longer any doubts as to my being able to work much as heretofore.” (
Fredeman, Correspondence, 77. 92