Sidonie nee Matzner/Matsner Gruenberg (1881-1974) was an American educator and author. She was born in Austria, and educated in Germany and New York. She married Benjamin Charles Gruenberg in 1903. She was the executive director of the Child Study Association of America. Her works include: Your Child: Today and Tomorrow (1913), Sons and Daughters (1916), Our Children: A Handbook for Parents (1932), Parents, Children and Money: Learning to Spend, Save and Earn (1933), We, the Parents: Our Relationship to Our Children and to the World Today (1939), The Use of the Radio in Parent Education (1939), The Family in a World at War (1942), Favorite Stories Old and New (1942), The Comics as a Social Force (1945), The Many Lives of Modern Woman: A Guide to Happiness in her Complex Role (1952), Pennies in their Pockets: Helping Children Manage Money (1955), The Challenge of the New Suburbs (1955), The Parents" Guide to Everyday Problems of Boys and Girls (1958), Your Child"s Friends (1959), The Modern Mother"s Dilemma (1957), Let"s Read a Story (1957), The Wonderful Story of How You Were Born (1962) and The Wonderful Story of You: Your Body, Your Mind, Your Feelings (with Benjamin Gruenberg) (1964). Это и многое другое вы найдете в книге Your Child (Sidonie Matzner Gruenberg)