What has the author W G McKelvey written?

It seems you're asking about an author named W. G. McKelvey. While there are a few individuals with similar names, I'm unable to find any definitive information about an author named "W. G. McKelvey" who has published significant works.

To help me find the right author, could you provide some more information?

* Full name: Is there a full name, middle name, or initials?

* Genre: What kind of books do you think they write (fiction, non-fiction, etc.)?

* Title of a book: Do you remember any specific book titles by this author?

* Time period: Do you have any idea when their books might have been published?

With more information, I can better assist you in finding out about this author.