Bowlby developed influential ideas about children and separation. Klein supervised part of his training. The ethologists Hinde, Lorenz and Tinbergen all had lively and influential contact with him following Huxley’s encouragement. Winnicott’s and Bowlby’s professional lives ran in close parallel, though they were not close friends, Winnicott actually opposing Bowlby’s election to the British Analytical Society. Freud thought he was taking psychoanalysis in the wrong direction, but still respected him. Mead, Erikson, Bertalanffy, Grey Walter, Piaget and Inhelder all shared WHO connections, while Jones had consulting rooms in Bowlby’s house.