Born in Poland and having done much of his professional work in the U.S., Mark Kac (1914-1984) was a mathematician and statistician who is credited with major contributions to probability theory. His first positions were at Cornell University, followed by twenty years at Rockefeller University. Commenting that he wanted to be ".... where there is more sun and less ice ...", he finished his career at the University of Southern California.[1]
He was part of the National Academy of Sciences review of the United States Air Force's Condon Report on unidentified flying objects.