Individuals in the back of the classroom, from left to right, are Mario Montessori, Helen Parkhurst, Maria Montessori, and Adelia Mary Pyle.
Das Martyrium der Kinder vom Bullenhuser Damm | Novelle
Individuals in the back of the classroom, from left to right, are Mario Montessori, Helen Parkhurst, Maria Montessori, and Adelia Mary Pyle.