It's possible that:
* The name is misspelled. Perhaps you meant a slightly different name, like Lawrence Colm, or perhaps there's a middle initial you're forgetting.
* The author is relatively unknown. There may be a lesser-known author with this name who has written works in a specific niche or genre.
* You may be thinking of a character in a book. There could be a fictional character named Laurence Colm.
Could you please provide more context or details about this author? Knowing their genre, nationality, or any specific works they may have written could help find the correct information.