What has the author E M Tappan written?

There is no widely recognized author named "E. M. Tappan". It's possible that this is a typo or a less known name.

To help me find information about the author, could you please provide:

* Full name: Does the author have a full name, or is E.M. an abbreviation?

* Genre: What type of books does the author write (fiction, non-fiction, poetry, etc.)?

* Any specific titles: Do you remember any book titles by this author?

With more information, I can try to identify the author and their works.