In some jurisdictions there may have been multiple courts that heard different types of cases. The obvious court that is often separate is the probate court–the one the oversaw the settlement of estates. There may have been a court that heard criminal cases and yet another court that heard other types of cases.
Make certain you’ve gone through them all. A divorce probably won’t be heard or settled in a probate court or a criminal court. Separate courts may have used the same facilities and had the same judge.
But the records may be separate from each other with separate indexes and finding aids.