- Persoon
1910 Born in Greece
1922 Moved to New York City
Columbia University. BA, MA in mathematics. Pulitzer Scholar
University of Chicago. Studies philosophy
Laval University (Quebec). Lic. En Phil.
1942 Harvard University. MA, Ph.D.
1942 West Virginia Wesleyan College. Taught mathematics and physics
1943-35 University of Rochester
1945-47 Amherst College. Taught mathematics and philosophy
1947-48 University of Chicago. Taught philosophy of Science
1948-78 Grinnell College. Professor of Mathematics
1961 Myra Steele Professor of Mathematics
1960,1969 Visits to Greece
1978 Retirement