Was the book Project Mulberry by Linda Sue Park based on a true story?

I have read the book I just don't have it anymore.Was the book Project Mulberry by Linda Sue Park based on a true story?
According to a review on the blog Abby (the) Librarian, parts of the novel are based on the author's own experiences. And the book itself is interspersed with the author's own reflections, in the form of dialogue, on how she came up with the characters.Was the book Project Mulberry by Linda Sue Park based on a true story?
No.

long hair styles