Organization Slapton Ley field centre

Field Studies Council (1956-1959)

St Luke’s College, Exeter (teacher)

Malham Tarn field centre (warden)

Devon County Council (conservation officer | 1971-1973)

Dartmoor National Park (national park officer | 1973-1990)

Devon Wildlife Trust

Devonshire Association

Countryside Council for Wales (chief executive | 1990-1995)

Association of National Park Authorities (secretary general | 1996-2001)