What has the author Margaret Hayne Harrison written?

There doesn't appear to be a well-known author named "Margaret Hayne Harrison" with any significant publications. It's possible that:

* The name is misspelled. Double-check the spelling and try searching again.

* The author uses a different name. Perhaps they publish under a pen name or have a middle name they sometimes use.

* The author is not widely known. They may have only written niche works or published independently.

To find out more about a specific author, try:

* Searching online databases: Use websites like WorldCat or LibraryThing to see if any books are listed under that name.

* Checking author websites: If you know their website address, look for a list of publications.

* Contacting a librarian: Librarians can help you search for information about authors and their works.

Please provide more information about the author or the type of work you are looking for, and I may be able to help you further.