I have not seen the original document, but I have found an index that lists the following:
Index to War of 1812 Pension Applications Files
EDGE, Jonas
Died 1854
State of Service: South Carolina
Residence: Lumpkin County, Georgia
WIFE'S MAIDEN NAME: Lucretia HARPER
Marriage Date: 10/12/1822
Knowing that she is Lucretia HARPER helps a bit in knowing why some of the family members used HARPER-EDGE as surnames.