What has the author Hoyt H London written?

It seems you're asking about Hoyt H. London, but there is no widely recognized author with that name. It's possible the name is misspelled or there may be a misunderstanding.

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

* Any other information about the author: Do you know what kind of books they write? Is there a title of a specific book you're looking for?

* Check your spelling: Are you sure the name is "Hoyt H. London"?

* Any other details: Do you have any other information about the author's work or their background?

Once I have more information, I'll be able to help you find the right author!