The Complete Harper’s Posters, 1893-1899
  Citations
1 Victor Margolin. American poster rennaisance: the great age of poster design, 1890-1900 (New York: Watson-Guptill, 1975), 32-33. Margolin's citation was based on the first Penfield entry in DFP, an unverified attribution by Malhotra to the unsigned work.Edward
2 Eward Penfield to John Hilliard, 7 Dec 1895, TLS. Collection of the author.
3 Ibid.
4

Herbert Stone. ‘Mr Penfield’s posters.’ The Chap-Book vol 1 no 10 (Oct 1894). 147-150.

5

Arthur Lubow. The Reporter who would be king: a biography of Richard Harding Davis (New York: Charles Scribner’s Sons, 1992), 99.

6 Eugene Exman. The house of Harper: one hundred and fifty years of publishing (New York: Harper & Row, 1967), 178.
7 Penfield to Hilliard, 7 Dec 1895.
8 Peter Hastings Falk. Dictionary of signatures & monograms of American artists from the colonial period to the mid-20th century (Madison, CT: Sound View Press, 1988), 556.
9

Charles Matlack Price. Posters (New York: George W. Bricka, 1922), 235-236.

10 Jack Rennert. Poster impressions (New York: Poster Auctions International, 1896), 415.
11 M.G. Dortu and P. Huisman. Lautrec by Lautrec (New York: Galahad Books, 1976), 175.