* The name is misspelled: Perhaps you're thinking of a different author with a similar name. Double-check the spelling.
* The author is not well-known: It's possible that Katherine Catmull is a newer or less well-known author, making it harder to find information about them.
* The author uses a pen name: Some authors write under different names, so it's possible the author you're looking for uses a different name.
To help me find information, could you provide any additional details? For example:
* Do you know the genre of books they write?
* Do you have any titles or book covers they have written?
* Do you have any other information about them, like their location or the time period they write in?
With more information, I might be able to find the author you're looking for.