* The name is misspelled: Double-check the spelling to see if it's a common variation.
* The person is not publicly known: There might be a person by that name working in the industry but without public recognition.
* The information is not readily available online: Their filmography might be limited or not well-documented.
If you have more information about Anita Garvin, such as her birth year, nationality, or any specific role she might have played, it would be helpful in finding relevant information.