SMITHSONIAN INSTITUTION / SCIENCE PHOTO LIBRARY SMITHSONIAN INSTITUTION / SCIENCE PHOTO LIBRARY
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Johanna Kunkel, wife of botanist Louis Otto Kunkel. Johanna Caroline Wortmann Kunkel (born 1887) married US plant pathologist Louis Otto Kunkel (1884-1960) in 1915 when he was doing postgraduate research at the University of Freiburg, Germany.
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