This book's author, Kathleen Morrison, is not associated with any of the other books that are listed on her author profile. She is just associated with the Robert Frost book, as she was his secretary. She died in 1989. https://www.goodreads.com/book/show/2...
Not sure if this image could be used or not, but this is also a better picture of the cover: https://www.abebooks.com/first-editio...