Mrs. E. T. Campbell-Brown to John Macdonald Henderson: letter Letter written by Mrs. E. T. Campbell-Brown, 8 Abercromby Square, Liverpool to John [Macdonald Henderson]. Gives biographical details of John Henderson, noting that he learned to draw from his uncle, Archibald Simpson, architect, and studied oil painting under James Giles together with John Philip, a close friend. She also mentions his foreman, Andrew Gibb, and comments on the inaccuracy of MS 2761/5. She believes that they have 'mixed up' various persons and that the list of John Henderson's works is inaccurate. [The letter is written in a different hand from MS 2761/7 and MS 2761/8] 12 January 1912