Bachelor of Arts, University of Chicago, 1949; Doctor of Philosophy, University Texas, 1958.
Assistant professor linguistics and English, Georgetown University, 1958-1961;
coordinator linguistics and literacy, Electronic Teaching laboratories, Washington, 1961-1963;
deputy director training, Peace Corps, North and East Africa, also South Asia, 1963-1966;
member of faculty, University Texas-Austin, 1966-1995;
professor linguistics, curriculum and instruction, University Texas-Austin, 1974-1995;
professor emeritus, University Texas-Austin, since 1995;
professor emeritus, Foreign Language Education Center, since 1996. Visiting professor Cornell Univercity, 1965, Karachi U., 1980-1981. Member solar and windenergy advising committee Texas Energy and Natural Resources Council, 1979.
Fulbright senior lecturer, Pakistan, 1980-1981, 82-83, Pakistan, 1991-1992, Iraq, 1989-1990.
Member Linguistic Society American, Teachers English to Speakers Others Langs., American Oriental Society, American Association for the Advancement of Science.
Married Margaret Lyne Miller, July 22, 1950 (divorced December 1955). 1 child, Ruth Claire. Married Camilla May Berkley, February 11, 1956.
Children: Helena Robin, Ralph Leon.