Erik Homburger Erikson was an American child psychoanalyst known for his theory on psychosocial development of human beings. He coined the phrase identity crisis.

Anna Freud CBE was a British psychoanalyst of Austrian–Jewish descent. She was born in Vienna, the sixth and youngest child of Sigmund Freud and Martha Bernays. She followed the path of her father and contributed to the field of psychoanalysis. Alongside Hermine Hug-Hellmuth and Melanie Klein, she may be considered the founder of psychoanalytic child psychology.