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Louise Bates Ames is a lecturer at the Yale Child Study Center and assistant professor emeritus at Yale University. She is co-founder of the Gesell Institute of Child Development and collaborator or co-author of three dozen or so books, including The First Five Years of Life, Infant and Child in the Culture of Today, Child Rorschach Responses, and the series Your One-Year-Old through Your Ten- to Fourteen-Year-Old. She has one child, three grandchildren, and four great-grandchildren. Frances L. Ilg wrote numerous books, including The Child from Five to Ten, Youth: The Years from Ten to Sixteen, and Child Behavior, before her death in 1981. She was also a co-founder of the Gesell Institute of Child Development at Yale.