1975-1976
 
 
1976-1978
 
 
1978-1979
 
 
1979-1984
 
 
1984-1986
 
1986-1989
 
1989-1990
 
1990-1993
 
1993 -1998
 
 
1998-2002
 
 
2002 -

South Wales Council
on Alcoholism
 
South Glamorgan Area
Health Authority
 
South Glamorgan Area
Health Authority
 
Aquarius
 
 
NACRO
 
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Aquarius
 
 
Self-employed
 
 
Pip Mason Consultancy Ltd