Jacob Viner was a Canadian economist and is considered with Frank Knight and Henry Simons to be one of the "inspiring" mentors of the early Chicago school of economics in the 1930s: he was one of the leading figures of the Chicago faculty. Paul Samuelson named Viner as one of the several "American saints in economics" born after 1860. He was an important figure in the field of political economy.
Jacob Viner
Frank Hyneman Knight was an American economist who spent most of his career at the University of Chicago, where he became one of the founders of the Chicago School.
Frank Knight