A group of students from the London 1939 course visited the Pierson home ‘Intimis’ in Baarn, The Netherlands, 1939.

This home provided a haven to Maria Montessori in the late 1930's as noted in the dedication of The Secret of Childhood.

It is to Mr and Mrs Allard and Ada Pierson and to their lovely daughter Ada that I dedicate this book.

In memory of the period of time spent in their splendid house ‘Intimis’ in Baarn (The Netherlands), when the hurricane of the war in Spain drove me and my family abroad.