Denomination: Roman Catholic
Senior lecturer St. Mary's College, University London, 1961-1966. Principal lecturer, research director psychology department Trinity College, University Leeds, 1966-1980. Head studies special education University Nottingham, England, since 1980.
Advisor Hong Kong Down's Syndrome Association, 1986. Research consultant Hong Kong Council Social Services, since 1986, European Down's Syndrome Association, since 1987. Consultant, member advisory board Latin American Down's Syndrome Association, since 1987.
Chief consultant Malta Down's Syndrome Association, since 1987. Advisor Hong Kong Association for Human Rights, since 1989. Visiting professor Queensland University, Australia, 1985, New Delhi University, India, 1985, Academy of Sciences, Prague, Czechoslovakia, 1986.
Chairman Hong Kong Association for Science Study Mental Handicap. Advisor Mental Handicap and Rehabilitation, People's Republic of China.
Author: Current Approaches to Down's Syndrome, 1985, Down's Syndrome, Past, Present and Future, 1989. Also articles. Research advisor, chairman research council Down's Syndrome Association Great Britain, London and Wales, 1981. Active Down's Syndrome Research Committee, Chicago, 1982.
Honorary secretary Home Farm Trust for Mentally Handicapped, Nottingham, since 1982. Advisory board Ravenswood Foundation for Jewish Handicapped People, Berkshire, England, since 1983. Grantee Down's Children's Association, since 1980, Mental Health Foundation, 1982.