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I found only one picture of Zeleny: http://photos.aip.org/images/catalog/zeleny_john_a1.jsp but it looks like American Institute of Physics holds the copyright.

Smithsonian Institution has: Zeleny, John (1872-1951). Bibliography to 1917. (Box 17 Folder 58), Record Unit 7320, National Museum of Natural History, Division of Mammals, Biographical File, 1860-1973 and undated. mailto: osiaref@si.edu before showing up there

Among the William Francis Gray Swann Papers at American Philosophical Society (105 South Fifth Street, Philadelphia, PA 19106-3386) there are two folders (Folder 1 and Folder 2 in Box 48) labeled "Zeleny, John" Mgnelu ( talk) 06:47, 29 February 2008 (UTC) reply