* The name is slightly misspelled or incomplete. It's always worth checking for variations in the spelling or middle initial.
* The author writes under a different name. Many authors use pen names or initials for various reasons.
* The author has a smaller, niche audience. Perhaps Laurence J. McGreevy writes in a specific genre or has only published self-published works, which might be harder to find.
To help you locate more information, could you please provide any additional details you might have about the author or their work? For example:
* Genre: What kind of books do you think Laurence J. McGreevy writes (e.g., fiction, non-fiction, science fiction)?
* Titles: Do you remember any titles of their books?
* Publication date: Do you have an approximate year of publication?
With more information, I might be able to help you find the author and their works.