1964~1974 Institute of Animal Physiology, Cambridge 연구원, 선임
연구원
1975 World Health Organisation 자문관
1976 ARC Institute of Animal Physiology 생리학과장
1984~1985 Institute of Animal Physiology, Cambridge
부국장, 연구부국장
1986 AFRC Institute of Animal Physiology and Genetics
Research, Cambridge Research Station 소장
1989 Royal Society 회원
1992 AFRC Babraham Institute, Cambridge 연구국장
1994 Biotechnology and Biological Sciences
Research Council,
선임과학자문관
1995 Royal Agricultural Society of England 명예회원
1996 Institute of Biology 소장
1996~2000 The Royal Society 외국 담당 부회장

1976 Royal Agricultural Society of England, Research Medallist
1980 Agricultural Research Council, Inventor’s Award