^Zim: the autobiography of Eugene Zimmerman Page 37 Eugene Zimmerman, Walter M. Brasch - 1988 "Chapter 1 ON MAY 26, 1862, IN BASEL, Switzerland, a country that would maintain its neutrality against the armies of Louis Napoleon's France and Otto von Bismarck's Germany, Eugene Zimmerman was born. His father was Joseph."
^American national biography John Arthur Garraty, Mark Christopher Carnes, American Council of Learned Societies - 1999 Volume 24 - Page 246 935), cartoonist, was born Eugene Zimmerman in Basel, Switzerland, the second son of Joseph Zimmerman, a baker, and Amelie Klotz, who died in childbirth two years later. Unable to care for his three children and earn a living, Joseph ."
^Art Wood, Great Cartoonists: And Their Art, 2000 Page 124 "Zim was careful to emphasize the importance of detail in cartooning, particularly the drawing of hands and feet. Eugene "Zim" Zimmerman; Puck magazine"
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