J. Russell Smith

Joseph Russell Smith (February 3, 1874 – February 26, 1966) was an American geographer. He worked in the Department of Geography and Industry at the University of Pennsylvania and later the Columbia Business School where he chaired the economic geography program. From 1941 to 1942, he was president of the American Association of Geographers.

He is considered the father of the field of agroforestry. Provided by Wikipedia