Not sure about tree claiming George 1793-1826 since this seems like him:
Name: George Mock
Age: 61
Birth Year: abt 1789
Birthplace: Surry County
Home in 1850: Davie, North Carolina, USA
Gender: Male
Family Number: 184
Household Members:
Name Age
George Mock 61
Delila Mock 60
Elizabeth Mock 25
Henry Mock 19
Henry Mock married Mary Binkley in Surry. Henry, George, and Peter were brothers.
http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=23467064
He apparently remarried but has a daughter Margaret.
In 1843, William Mock sold his interest in the "Old Hixt tract" that he inherited from his mother.