Jan. 11, 1887 Burlington Des Moines County Iowa, USA
Apr. 21, 1948 Baraboo Sauk County Wisconsin, USA
Scientist. Specialist in Environmental biology, he made extensive studies and surveys of wildlife in North America. During his tenure with the United States Forest Service (1909 to 1933) he was a tireless defend of wildlife preservation, and advanced the concept of preserving Wildlife and Wilderness areas for their own sake and for their own beauty.