Career
She is chiefly remembered for The Book of Hallowe"en (1919), the first book-length history of the holiday. She grew up in Lynn, Massachusetts, and received a master of arts degree. The Book of Hallowe"en was Kelly"s first book
Her second book, A Life of Their Own (1947), dealt with immortality and spirituality.
Kelley died in Marblehead, Massachusetts at the age of 88.