Robert O. Binnewies

 Robet Binnewies served as superintendent of Yosemite National Park from 1979 to 1986.

He also held senior executive positions with the National Audubon Society and the New York Department of Environmental Conservation.

He is author of Palisades, 100,000 Acres in 100 Years.

He lives in Tubac, Arizona.

For a more detailed bio see Robert O. Binnewies Wikipedia page.