Rachel Grob / Larry Schweinhart / Richard Lewis / David Elkind / Erik Erikson / Francis Wardle / Kathryn Hirsh-Pasek / Johann Heinrich Pestalozzi / John Locke / Sigmund Freud / Jean Jacques Rousseau / Sydney Gurewitz Clemens / Stuart Brown / Katrina Ferrara / Jean Piaget / John Amos Comenius / Edward Miller / Maria Montessori / Friedrich Froebel / Rudolf Steiner / Joan Almon / Maggi / /