Consultant Reader for PMLA 1973--; Consultant Reader, Speculum 1985--; Consultant Reader, College English 1986--; Consultant Reader for Studies in the Age of Chaucer 1986--.   Consultant Reader for the University of Delaware Press; State University of New York Press; Longman Publishers; Kent State University Press.

Member The Mediaeval Academy of America 1971--; Member, The Modern Language Association of America, 1968--; Member, The New Chaucer Society 1982--; Member, Delaware Valley Medieval Association 1986--; Vice-President, 1998. Participant in the Chaucer Network and MEDTEXT-L, 1991--.