Marjorie Flack (22 October 1897 - August 29, 1958) was an American artist and writer of children's picture books. Flack was born in Greenport, Long Island, New York in 1897.[3] She was best known for The Story about Ping (1933), illustrated by Kurt Wiese, popularized by Captain Kangaroo,[1] and for her stories of an insatiably curious Scottish terrier named Angus, who was actually her dog. Her first marriage was to artist Karl Larsson; she later married poet William Rose Benét.