The Peratrovich family later moved to Antigonish, Nova Scotia, Canada, where Roy studied the fishing industry at St. Francis Xavier University, the first Alaskan to do so on a United Nations fellowship. Later, they moved to Denver, Colorado, where Roy studied banking and finance at the University of Denver and credit procedure at the Central Bank and Trust Company in Denver. In the 1950s, the Peratrovichs moved to Oklahoma, when Roy took up a position with the federal government, and they moved back to Alaska when Elizabeth fell ill.