Who are the Early Childhood Pioneers?

The early childhood pioneers are: John Amos Comenius, john Locke, Johann Pestalozzi, Jean Jacques Rousseau, John Dewey, Friedrich Froebel, Maria Montessori. These are the major contributors there are some lesser known but very influential ones also but I think these are known as the pioneers.

Answerrev. Henry ward, madge saunders and dudley grant

Maria Montessori