I. Madison Bentley
I. Madison Bentley, also known as Isaac Madison Bentley and later as Madison Bentley (June 18, 1870, in Clinton, Iowa – May 29, 1955, in Palo Alto, California) was an American psychologist. His first publication in 1897 was under the name "I. Madison Bentley."
Bentley was one of the first to write about gender in his 1945 publication Sanity and Hazard in Childhood.