Sesyle Joslin (pen names, Josephine Gibson, G. B. Kirtland; born August 30, 1929) is a children's literature author.
was illustrated by Maurice Sendak and it was a Caldecott Medal Honor book in 1959.
During the late 1940s and early 1950s, she worked as an editorial assistant and assistant editor in Philadelphia, and was the book columnist at Country Gentleman magazine from 1949 through 1951.
[2] In addition, she served as a production assistant on Peter Brook's Lord of the Flies[3] and worked on location in Puerto Rico.
Under the name "Josephine Gibson", she and her husband wrote Is There a Mouse in the House?