Gifford Bryce Pinchot (August 11, 1865 – October 4, 1946) was
the first Chief of the United States Forest Service (1905–1910) and
the Republican Governor of Pennsylvania (1923–1927, 1931–1935).

He is famous for reforming the management and development of forests in the
United States and for advocating conservation of the nation's forest reserves
by planned use and renewal:
"the art of producing from the forest whatever it can yield for the service of man."
He coined the term conservation as applied to natural resources.