Paul Kohner (1900 - 1965) was a game designer who was one of the founding brothers of the Kohner Brothers Company. During World War II, he emigrated to the United States from Czechoslovakia along with his brother. He was responsible for manufacturing games like Trouble and Headache. The company was sold to General Foods in 1969.
http://www.oldwoodtoys.com/kohner.htm
Co-designer of Trouble.
http://en.wikipedia.org/wiki/Trouble_(board_game)
Note: This is not the same person as Paul Kohner (1902-1988) who in 1938 opened the Paul Kohner Talent Agency which managed the careers of actors and actresses such as Henry Fonda, David Niven, Marlene Dietrich, and Greta Garbo.