 He married Carol S. Rubin on June 19, 1948 and in the following spring took up residence on a Junior Fellow Study Grant in the Saint-Germain neighborhood of Paris.While in France, Cook attended lectures by Merleau-Ponty, Claude Lévi-Strauss and Jacques Lacan.His three sons were born in the years following his return and in 1951 the family moved to New York City.