Yes, that is the date of the marriage bond for Andrew [McCartney] and Susanna [Trevey] to marry. [Dec 31, 1807]
I descend from Susanna's brother, Andrew Trevey, my ggg grandfather. Andrew and Susanna Trevey were children of Joseph Trevey (Treibig) and Susanna Shaner (Schoener).
http://archiver.rootsweb.ancestry.com/th/read/VAROCKIN/2003-10/1066879207