"Jessie Willcox Smith (September 6, 1863 – May 3, 1935) was a United States illustrator famous for her work in magazines such as Ladies Home Journal and for her illustrations for children's books.
Smith may be most well known for her covers on Good Housekeeping, which she painted from December 1917 through March 1933. She also painted posters and portraits. Her twelve illustrations for Charles Kingsley's The Water-Babies (1916) are also well known. On Smith's death, she bequeathed the original works to the Library of Congress' "Cabinet of American Illustration" collection. (A thirteenth illustration remains in a private collection.)"
Source: Wikipedia, "Jessie Willcox Smith", available under the CC-BY-SA License.