Noted Austrian-British psychoanalyst Anna Freud applied to child therapy.
Anna Freud, the sixth and last of Sigmund Freud and Martha Freud, followed the path of her father and contributed to the new field. Compared to her father, Freud's work emphasized the importance of the ego, and its ability to be trained socially.
Source: http://en.wikipedia.org/wiki/Anna_Freud