Terrisfight.org is the main site for Terri but it is not the only source available. Are you saying that if it's not posted there, it is not true? There are many records and interviews not listed on that site..but they exist.
The court documents are said to be public record. If so, these children aren't mentioned in court.
I don't know whether or not you have tried to find records through your own research, but not all records are available to the public. Gee, I want to sue because Michael's SSN was crossed out and I have a right to know.
As I said earlier, not all of the info was available to the Schindlers from the beginning..now they are limited as to what they can present.
I've tried some, but haven't found the right link to search online. They have to be on file with some govt. dept. somewhere. In some places they're available for in person inspection if you go to the right agency. I'm unable to do it myself at present, but a Florida citizen might be able to go to the appropriate places in Pinellas and Tallahassee.
This is important since the children's existence, parentage, and dates of birth might have a bearing on one of the upcoming cases.