 In 1964 he took a sabbatical with a study grant from the American Research Center in Cairo, Egypt.He returned to Portland for a year but went back to Egypt as a visiting professor at the American University of Cairo from 1966 to 1967.When war broke out, he and his family (then-wife Sally Dennett and their son Dennett Colescott, born in Portland, Oregon in 1963) moved to Paris for three years.