Elizabeth Winthrop, also known as Elizabeth Winthrop Alsop, is an American author who has published more than sixty works, primarily children's fiction, in addition to novels for adults. She is best known for the classic middle-grade novel, The Castle in the Attic and its sequel The Battle for the Castle which have been nominated for 23 state book awards and are considered children's classics. Her most recent children's book is Maia and the Monster Baby illustrated by Amanda Haley. Her most recent historical novel, Counting on Grace was chosen as a Notable Book of the Year by the American Library Association, the National Council of Social Studies, the International Reading Association and the Children?s Book Council among others. Some of her most popular picture books include Dumpy La Rue, Shoes, Dog Show, Squashed in the Middle, The First Christmas Stocking, and The Biggest Parade. She is the daughter of American newspaper columnist and political analyst Stewart Alsop and the great grandniece of former President of the United States Theodore Roosevelt. She currently resides in New York City 

January 1st, 1948 in Washington, D.C. (Age 76)