Doctor of Philosophy in Slavistics, Ukranian Free University, Munich, 1948. Master of Arts in Political Science, University Fribourg, Switzerland, 1951. Doctor of Philosophy in International Relations, University Paris, 1956.
Assistant editor Ukranian Encyclopedia, Sarcelles, France, 1951-1958. Researcher Prolog Association, New York City, 1959. Instructor University Notre Dame, South Bend, Indiana, 1959-1962.
From assistant professor to professor Loyola University, Chicago, 1962-1991. Associate editor Encyclopedia Ukraine, Sarcelles, Toronto, Canada, 1980-1986. Editor-in-chief Encyclopedia Ukranian Diaspora, Chicago, since 1988.
Professor Loyola University, Rome, 1965-1966, 70-71, 76-77, 81. Visiting professor Institute International Relations, Kiev University, Ukraine, 1990.
Member Supreme Ukranian Liberation Council, Munich, New York City, since 1954. Executive director Rukh (movement) to Aid Ukraine, 1989-2000. Honorary member Ukranian Catholic Church Brotherhood.
Member Shevchenko Science Society United States of America, Ukrainian Free Academy Arts and Sciences (New York ), National Academy of Sciences Urkaine.
Married Daria Hasiuk, January 30, 1960. Children; Taisa Markus-Ivashkiv, Ustina, Vasyl.