Where can find books Edith Ogden Harrison 1905 - the moon princess and moon theme?

We own The Moon Princess and Prince Silverwings, both signed by Edith Ogden Harrison. The Moon Princess was given to Mrs. Jefferson Davis, signed October 18th 1905. Prince Silverwings was also signed, December 11th, 1902, given as a gift to Mrs. Jefferson Davis. My husband's mother, Margaret Varina Webb, is the great grand child, of Mrs. Jefferson Davis. My husband is Gerald Webb Bennett, son of Margaret Varina Webb. We inherited these books, upon Mrs. M. V. Webb, Bennett, Stewart's death in May of 2000. My name is Edwina Bennett, wife of Gerald. We also own The Star Fairies, which was signed, Chicago, May 2nd, 1904, again given to Mrs. Jefferson Davis.