
Head of a man in a cap was drawn on the draft of a letter from Whistler to the firm of Thorndike Nourse in March 1891. 1 The letter is not related to the drawing.

Head of a man in a cap, Glasgow University Library
The drawing is catalogued in MacDonald 1995 (cat. rais.) [more] (cat. no. 1316). The entry has been amended.

Head of a man in a cap, Glasgow University Library

Head of a man in a cap, Glasgow University Library
Possibly a jockey, not identified.

Head of a man in a cap, Glasgow University Library
This is very like the work of Beatrice Philip (Mrs E. W. Godwin, Mrs J. McN. Whistler) (1857-1896), particularly her caricatures, although it is possible that it was by Whistler, who was influenced by her style of drawing at this time. Both letter and drawing were drawn with black ink and a fine nibbed pen, which makes it difficult to separate writer and artist.
It was not exhibited in Whistler's lifetime.
1: [3/10 March 1891], GUW #04312.