Developed from a short story by Shirley W. Smith, Vice-President Emeritus of Univ. of Michigan, published by Smith in the Univ. Of Michigan Alumni Quarterly Magazine in 1946.
"This book is not a motion picture edition, but is based on the 20th Century-Fox production It Happens Every Spring starring Ray Milland, Jean Peters, and Paul Douglas", for which the author was also the screenwriter.
"Designed by Stefan Salter" on the copyright page. This presumably refers to the book itself, and not necessarily the cover, which is otherwise uncredited.
RMPowers is on the artwork next to the woman's shoe.