1 This letter survives among the papers of John Samuel Hill Fogg (1826–96), a Boston physician (see the textual commentary). After polio confined him to a wheelchair in 1873, Fogg devoted himself, with the assistance of his wife, Mary, to building a manuscript collection that finally included five thousand autograph letters and documents. He made a special point of including a photograph of the writer with each letter he collected. It is very likely, therefore, that Clemens here answered an inquiry that was intended to produce a letter for Fogg’s collection as well as a photograph to accompany it (biographical information courtesy of the Maine Historical Society).

2 The London Graphic’s “good likeness,” an engraving from a photograph taken in London by Charles Watkins, appeared on 5 October 1872. A similar, but not identical, engraving—possibly prepared from the Graphic or from a Watkins print furnished by Clemens—accompanied George T. Ferris’s biographical sketch in Appletons’ Journal for 4 July 1874. It is reproduced on p. 447 (see 22 May 74 to Bliss, n. 2, and L5, 162, 194–95 nn. 2, 6).

Engraving from Appletons’ Journal (4 July 74, 16). See 11 Apr 75 to Fogg, n. 2.