From familysearch - found his wife Kate Brennback/Brumbeck. That led to his marriage identifying his parents as LE and LA Oliver. - Led to census. Led to their first names, led to their marriage cert - led to their grandparents names!!! Try that site - it is free!
Groom's Name: Walter T. Oliver
Groom's Birth Date: 1872
Groom's Birthplace: Fairfax Co.
Groom's Age: 20
Bride's Name: Kate W. Brumback
Bride's Birth Date: 1872
Bride's Birthplace: Page
Bride's Age: 20
Marriage Date: 09 Nov 1892
Marriage Place: Page, Virginia
Groom's Father's Name: L. E.
Groom's Mother's Name: L. A.
Bride's Father's Name: J. B.
Bride's Mother's Name: V. C.
Indexing Project (Batch) Number: M86864-0
System Origin: Virginia-EASy
Source Film Number: 33392
Reference Number: 73-93
Census, 1880
Name: Lewis E. Oliver
Residence: Providence, Fairfax, Virginia
NARA Film Number: T9-1364
Page: 339
Page Character: D
Entry Number: 190
Film number: 1255364
Household Gender
SELF Lewis E. Oliver M/33VA
WIFE Lucretia A. Oliver F/34 VA
SON Walter C. Oliver M/7 VA
DAU Susan Oliver F/3 VA
Susie K. Tancil F/26 VA