When you actually own a card from a set not in our database, you can post in the Forum ->Community ->Feedback & Suggestions ->Inventory/Storefront Questions and Feedback ->Baseball and just add a scan of one of the card and maybe list at least the card you own and the set will be added at least to the higgest card # you have and the staff can fill in the missing card number with "no name" instead of the player name since we would not know it. Then it help other collection to know the set does exist at the minimum and in time, maybe other will let us know the missing card player name.