I don't know who posted a 1794 birth date for Grace Daniels Sears, perhaps it was a misreading or a typo.
Grace Daniels Sears was born 1764 in Chatham CT, married 11-1780 in New London CT and died 26-2-1843 in New Durham Greene County NY. She received a widow's pension. I downloaded a copy of this document from the NEGHS HeritageQuest site. It can be found Series: M805 Roll: 723 Image: 699 File: W16401 Page: 1 of 10 Surname GivenName State Service SEARS GRACE CT CONT. Her brother Nehemiah Daniels witnessed her marriage and I surmise from census records and Nehemiah Daniels Revolutionary War pension request that their parents were Nehemiah Daniels and perhaps Elizabeth Worthington. NOTE: I do not have proof, only possibility of Grace's and Nehemiah's parentage.
Another researcher has indicated that it is possible, but not proven, that Grace's grandparents were Jonathan Daniels and unknown from New London CT.