What has the author J H Mortimer written?

There is no widely known author named J H Mortimer. It's possible that:

* The name is slightly misremembered or misspelled. There could be a similar author with a slightly different name.

* The author is not very well-known. They may have published independently or in smaller publications.

* It's a pseudonym. The author may be using a pen name for their work.

Could you provide more context?

* Where did you encounter this name? (Book title, website, etc.)

* Do you remember any other details about the author or their work? (Genre, time period, etc.)

With more information, I might be able to help you find the author you're looking for.