What has the author William H Butterfield written?

There doesn't seem to be a widely recognized author named William H. Butterfield. It's possible there are less well-known authors with that name, or it's a misspelling of a more common name.

To help me find the correct author, could you please provide more context? For example:

* What kind of books do you think he might have written? (Fiction, non-fiction, a specific genre?)

* Do you remember any titles or any specific information about his works?

* Is there any other information about the author, like the time period he might have lived in?

With more information, I can help you find the author you are looking for.