P. L. Travers (1899-1996) was a drama critic, travel essayist, reviewer, lecturer, and the creator of Mary Poppins. Ms. Travers wrote several other books for adults and children, but it is for the character of Mary Poppins that she is best remembered. MARY SHEPARD (1910-2000) was the daughter of Ernest Shepard, illustrator of the Winnie the Pooh books and The Wind in the Willows. She illustrated P. L. Travers's Mary Poppins books for more than fifty years. MARY SHEPARD (1910-2000) was the daughter of Ernest Shepard, illustrator of the Winnie the Pooh books and The Wind in the Willows. She illustrated P. L. Travers's Mary Poppins books for more than fifty years.