* The name is misspelled: Double-check the spelling to see if it's a slightly different variation.
* The person is not widely known: They may be a private citizen or someone in a very specific niche.
* You may have encountered them in a specific context: Can you provide more information about where you came across this name? For example, a book, a website, or a conversation?
With more context, I might be able to help you identify who Nellie Bousted is.